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Quick-Lock Adjustable Dumbbell System 75 lb Set

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    Purchase Quick-Lock Adjustable Dumbbell System 75 lb Set

    SKU: 75-2
    Quick-Lock Adjustable Dumbbell System 75 lb Set

    $698.00

    ★★★★★ ★★★★★ 4.88/5 Stars. (265 Reviews)

    Sold Out: This item is out of stock until approximately early-mid June
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    – Please note this item has changed. The Dumbbell Stand is now sold separately since there are now two Stands to choose from. Don't forget to choose a Stand to go with your Dumbbells and take advantage of Quick-Lock Dumbbell Package deals for larger orders!

    The Ironmaster 75 LB Quick-Lock Dumbbell Set is one of our flagship products and a customer favorite for people looking for a premium quality adjustable dumbbells.

    Unparalleled Quality and Realistic Feeling Adjustable Dumbbells Many adjustable dumbbells suffer from the same set of problems and annoyances. They are cheaply made causing them to break or become non-functioning after a short period of time. Not only is this expensive, it can also be dangerous. Our adjustable dumbbells are guaranteed for life with a no-frills lifetime warranty. A common complaint of competitor products is that the dumbbells do not feel like a real dumbbell. Our adjustable dumbbells look, feel, and function just like real dumbbells. They are solid and ready to go containing no plastic or fragile components. More information about this product is available in the product details section.

    Includes 1 pair (2) of 75 lb adjustable dumbbells.

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    Description

    Features of the 75lb Ironmaster Adjustable Dumbbells:

    • Quick-Lock handle design lets you add or remove plates with just a partial turn of the locking screws! US Patent 7,182,716
    • Adjust from 5-75 lbs each in 2.5 lb increments in just seconds. (75 lbs each dumbbell = 150 lbs total)
    • Set includes two handles with four locking screws, 24 ea. 5 lb plates and 4 ea. 2.5 lb plates. Handles weigh 5 lbs empty and each locking screw weighs 2.5 lbs so the starting weight is 10 lbs each adjustable dumbbell before plates are added. 65 lbs of plates can be loaded on each handle.
    • These adjustable dumbbells lock up tight with no rattling or looseness. They feel just like traditional fixed weight dumbbells and are not restrictive in the ways you can grip them.
    • Chrome plated steel handles with knurled grips.
    • Heavy Duty - go ahead and drop them. No plastic or fragile parts!
    • Lifetime warranty!
    • Add-on kit available to go up to 120 lbs each adjustable dumbbell or even a custom Add-on-kit to 165 lbs.
    • Dumbbell dimensions are just 6.7" square x 14.5" long at the 75lb size and just 9" long at 20lbs size. Handle grip diameter is 1.25" and there is 6.5" grip width inside.
    • The weight plates are marked in both LBS and KGS.
    • 2 durable dumbbell stands are availble for purchase separately: 

    quick lock dumbbell curl

    Reviews

    ★★★★★ ★★★★★
    4.88/5 Stars out of 265 Reviews
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    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | November 23rd, 2010
    Great value I have had these for quite a while now. They are great adjustable dumbbells. They are very well made, and the process of changing weights is very quick and easy. I have gotten more than my money's worth of use out of these already. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | September 21st, 2010
    Good product, but be aware of the cheaper alternatives These are great adjustable dumbbells. The ONLY disadvantage is the relatively slow change time compared to something like Powerblock, but that's well known and can be weighed (don't mind the pun!) against the advantages of solid construction, feel and the free stand. However the videos on the site are a bit misleading. And I think IM's are not THAT much better than cheap spinlocks with regular plates. They are faster to change but not that much faster, its the same basic principle with the fancy Quicklock system. If you have the money go for it. But a lot of people get seduced by the idea of adjustables, esp the crappy Bowflex Selecttech. Then they find out about the real alternatives - Ironmaster and Powerblock. And all this time they aren't even aware of the cheap as dirt spinlocks. You can buy handles and weight plates as and when you need them, even used plates. They are just as solid as the IM's. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | August 23rd, 2010
    Here's a quick review and answer to most complaints on this product. Here's a quick review. If you're doing the P90X training, this is not for you and stop reading this. If you are doing real weight training these are it or have 5-20 seconds between exercises this are for you. Below, I put to rest everyone's complaints about this product. Let me clear some misconceptions of the product. The changing of the weights, if you follow the directions it can be done in seconds, a maximum of 10-20. Turn the lock to line up marks on the dumbbell handle and pull straight out. If you don't have Parkinson this should be easily done. When locking the dumbbell, turn the lock so it stops, plus a tiny bit. The plates sticking together sounds like user error, I have yet to have this issue. THE VIDEO ON THIS PRODUCT IS FUNNY. The guy complains about the stand and the dumbbells fitting. Here is the solution, put the dumbbells on the other way. Look at the picture of the stand now..... Do you notice that the dumbbells are on the stand with the ends facing the out toward the open edge of the stand. Well turn the dumbbells, so the ends are facing towards the raised side of the stand. Now, you have plenty of room and changing the weights well be easier. No, the lip of the stand doesn't get in the way. I think this issue is fault of the marketing department and putting the logo of the stand in plain view with the end of the dumbbells. This product is heavy duty and comes with a lifetime warranty. The complaints on this product are very minor issues, if you want a real dumbbell feel this is it. This is the cheapest HIGH QUALITY adjustable dumbbell out there, that comes with a stand and goes up to 75lbs. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | August 1st, 2010
    DWB26 I have used these dumbbells since mid-june 2009 and like previous reviews have noted; they are built to last and are safe to handle. I enjoyed using them and glad that i made the investment. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | July 20th, 2010
    Ironmaster Dumbells Best damn dumbell systeem I have ever used. I am 52 plus years old and have been lifting weights since I was 13. I have never found a system this easy to use and the ease in which it can be expanded to a higher level. This is a fantastic product. Everyone and anyone who lifts should own a set of IronMaster lock Adjustable Dumbells. Sincerely Francis J. Barbeau Cheif Warrant Officer US Army, Retired Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | July 4th, 2010
    Tremendous I have been lifting for over 20 years and am currently a competitive powerlifter. I can honestly say that these are the best quick change dumbbells on the market. I didn't get them through amazon, however, the price for the quality you get is quite reasonable. The weight change is very easy, it literally takes no more than 20 seconds. A highly recommended purchase Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | January 24th, 2010
    3 Reasons why Ironmaster is the best I spent a month researching adjustable dumbbells and finally decided on Ironmaster. I'm really glad I didn't buy Bowflex SelectTech (it seems like every bodybuilding forum hates these). Why I went with Ironmaster dumbbells: 1). AUTHENTICITY -- These dumbbells are just like the real thing. They don't rattle; there's no odd parts; you can drop them; they are safe and secure. 2). LONGEVITY -- There's a reason these dumbbells have a lifetime warranty. No pins, no plastic, and no weak parts. Your children's children could be using these. If you ever decide to you want to get rid of them, they have a huge resell value. Throw up an ad on Craigslist and recoup ~70% of your purchase price. 3). UPGRADABLE -- An add-on kit increases the weight to 120lbs. There's also a "custom" 165lb kit. Ironmaster has several other add-ons: kettlebell kit, straightbar kit, and EZ curl kit, all which use the same weighted plates. This makes these dumbbells a great investment. Ironmaster is located in Woodinville, WA, so the closer you live to the Pacific Northwest, the faster you'll receive these dumbbells. I live in Seattle and ordered them Friday morning and received them Saturday afternoon! Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | January 13th, 2010
    Best of the lot I have compared many adjustable dumbells. Powerblocks, Bowflex selecttechs, golds gym, titanweights, ironman lever lock, probell or xvest. I found out one thing after looking at all these designs. You can have quick change but not without changing the physical look or design of the dumbbell. If the quick change is sacrificed to *some* extent, you will have a near perfect dumbell which is IronMaster dumbbell. powerblocks, titanweights are a snap in changing the weights but both have kind of boxed design. Bowflex, goldsgym, probell, ironman suffer from rattling. Besides both the above category dumbbells are not 100% suited for some exercises or atleast scare the users that something may fall off or hurt them ( bench presses, skull crushers etc ). Ironmaster dumbbells are the only ones which feel 1000% ( not a typo) safe in any traditional dumbbells exercises. BUT only serious caveat is that changing weight does take some time as the weight plates come in 5 pounds. If you have to change from 20 pound dumbbell to 55 pound dumbell, you have to do some math like 55-20 = 35/5 = 7. so need to add 7 five pound plates to one dumbell. This you need to do it such a way that 4 go on one side and 3 on the other side of a dumbbell. Since you have to change two dumbells for any exercise, you have to add 4 plates on to one side and 3 on the other side for another dumbbell too. This sounds very slow but it isnt. still it is much slow compared to changing weights on any of the above mentioned dumbbells. But once you change the weight and have the dumbbells ready, they are BOMB proof. They dont rattle, dont restrict any movement, can place them sideways ( which you cant do with some of the other dumbbells ) on your thigh, drop them on floor, dont need to place the dumbbells on a specific platform and have to put down somewhere to switch between hands etc. Bottom line is for a little sacrifice in changing time, you get tons of other advantages and these are AS CLOSE to the traditional dumbbells as you can possible get. Finally price wise, they are very competitive ( cheap ) and combined with their super bench which is REALLY THE BEST WEIGHT BENCH out there, you cannot possibly go wrong. They have a LIFE time warranty on their dumbbells which come with a stand/rack included. For super heavy lifters ironmasters are expandable to 120 pounds per hand and beyond, I guess 160 pounds or something. Finally, they are cheaper on their home page than amazon (sorry amazon). Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | December 16th, 2009
    As promised Solid product. If you work hard at it with enough weight, you CAN get the locks to come loose, but it's not very easy. Locks do take a little bit of getting used to, but I give the bells a thumbs-up. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | December 9th, 2009
    Excellent dumbbell set that saves space I have had these dumbbells for 6 months now and they are fabulous. I really like the small footprint they take, the solid, secure feel they have, the ease of adjusting them, and that I can use them like real dumbbells if I want to hold on to the side for tricept exercises. The screws lock the plates in very well, they don't take long to adjust, and feel like normal dumbbells. I looked at several of the adjustable weight systems and this just had the right price and quality match. Plus you can use these weights in their kettlebells as well. The black paint can chip if you bump one against another, but I am not seeing any rusting or other issues with that beyond some very minimal paint chip on a few plates. Their products are very good quality and I am mindful of them when I look to expand my home gym. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | October 19th, 2009
    Best adjustable dumbells i've used I purchased the Ironmaster 75lb dumbells a few weeks ago, and I gotta say they are great. Not as quick to adjust the weights as the bowflex, but they seem to be as sturdy as the gym quality fixed weight dumbells that I used to use at the gym. I would recommend these to anyone over the bowflex or any other adjustable system. Even though it takes a little longer to change the weights, it's still not long enough for it to be an issue, maybe 30-40 seconds for both dumbells. I never write reviews on items that I purchase... my wife does, but I don't :)... but I thought that the quality was amazing on this item. I went back and forth between purchasing the bowflex and this, and i'm glad I chose this. Anyone looking for a great quality adjustable dumbell should look at the ironmaster, you won't be disappointed! Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | August 17th, 2009
    VERY happy with this dumbbell system! I did a lot of research for an adjustable set of dumbbells. What made me decide upon the Iron Master set is the quality (having no plastic), the gym feel of the handles, the flexibility with the choice of weight (able to do 2.5lb changes), and the locking system (the sense of security that the weights were not going to fall off during workouts). I wasn't sure on how easy it would be to change the weights, but it really is as easy as described. I didn't know it at the time, but Iron Master will also sell the handles and locks separately. So now my spouse and I can work out together at the same time, thus eliminating the need to constantly change between our sets. I wish we had bought the Super Bench when we bought the dumbbells. I wasn't prepared for spending that much upfront, but the bench will be our next purchase soon. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | July 27th, 2009
    Exactly What We Needed My fiance and have just begun a workout program. We decided to add dumbbells to our inventory. Adjustables were pretty much required since we lift different weights. The obvious set that came to mind were the bowflex (good marketing on their part). Did some research and read the various complaints. Then found the PowerBlocks and was just about sold. In fact, I am confident that had we purchased the PowerBlocks, we would have been happy. They are more than adequate for what we need right now. Read another review that mentioned the ironmasters. Had never heard of them. The more I read, the more I liked what I was seeing. It was hard to find a legitimate bad review on them. I was pretty much decided on getting them and the superbench. I completely lucked out and found a local person selling the dumbbells used. I picked up the dumbbell set and the add-on kit for less than I could have gotten the dumbbells by themselves from ironmaster. Needless to say, I am thankful that we scored. The one thing I read and believe is that the weight of the PowerBlocks can be changed quicker than on the ironmaster. This is not a huge factor for me when I use the dumbbells by myself. If we do workout together, the workout takes longer because we are swapping weights. It is still relatively quick and very painless. If we need to speed up our workouts, I will buy another set of handles so we can both use a set at one time. Another factor to consider is all the additional accessories available from ironmaster. Once you have the weights, you can get other items that utilize the same weights so you do not have to go out and by additional weights. This was influential for us because we can expand our equipment to match our needs as they arise. Ultimately, I am very satisfied with my purchase, especially for the deal I got. I am planning on ordering the superbench in the next few days. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | June 30th, 2009
    Great quality When these weights arrived, the boxes were battered and scarred, but their weight made me hopeful. After unpacking the boxes, I found a GREAT set of weights. In great condition despite the cardboard carnage. All in all a 5/5 for me, these are more sturdy than any other adjustable weight I have tried. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | May 20th, 2009
    Simply Awsome I finally got my adjustable DB's and Super Bench in the mail and I put it together. It took me about 2hrs to complete, nothing advanced or special tools to put together. I put my weigths together, yet another simple task. After school I turned on the TV and to get a feel for it and I did some Standard Bench, Incline bench, sitting Tri-extensions and lying tri-extensions. The bench is incredibly comfortable and I think it is as good as anything you will find in the gym. After securing the weights theres no fear of them falling, they don't rattle or anything. Adjusting the bench only requires pressing down on the lever and changing it to what angle you want. No problems here either. Bench is stable and the fact the weights are square and flat is nice so i can use my legs to brace the weigths and thrust upwards. Afterwards I started my sitting tri-extensions. No problems getting the diamond hold and putting the weight behind my head and working it. The only downside I have is I think the plates you should be able to put on in any direction and not just the side where they interlock and both side should be interlockable. Other than that, i'm glad I bought this set and I would do it again. I would recommend getting the dip and cruch add-on, I will next pay check. All in All, very high quality. 5-120lb(add-on) is excellent range of weight to work out with. This is a great system worth investing in long-term. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | March 2nd, 2009
    Ironmaster Vs. Powerblock from someone who owns BOTH After years of collecting the old standard hex dumbells, and trying to maintain a home gym in the city in various apartments (usually in the common basement) I found the PowerBlock dumbells. For someone without a dedicated room (with lots of space) for their workout equipment, these are fantastic dumbells. They go up to 85 or 90lbs without the add-on kit, and they are super fast and easy to change the weight. They are pricey, but considering the amount of dumbells they replace, well worth it, for the right user. After using the PowerBlock setup for a couple years I came across IronMaster, another brand with adjustable dumbells. They go to 75lbs without the add-on kit, and cost a little less than the PowerBlock dumbells. I have BOTH in my home gym now, and I will go over the pros and cons of each for those of you trying to decide on a set up like this. PowerBlocks: Pros: Well made, comfortable grip, fast and easy to change the weight in 10lb increments, nice stand included, made in USA, ability to go up to 85-90lbs as is, and 120lbs with add-on. Excellent for exercises where you change weight quickly or frequently. Square dumbells don't roll. Cons: Funky design with 4 pillars around your hand/wrist. It works, but it makes me nervous at higher weights that if I were to drop them I could somehow catch my wrist in there and hurt myself. Difficult to quickly switch weights in increments smaller than 10lbs. This is a problem for many exercises. Although they are sturdy, and have never given out on me, they rattle and the plates move a little when you use them. Again, they seem sturdy but when doing shoulder or bench press it's a little disconcerting. You need to make sure the magnetic pins are fully inserted and in the right spot or disaster could ensue. The dumbells get long when using a lot of weight which can be somewhat awkward for certain exercises. Overall: These dumbells are best for exercises where you change the weight frequently, or quickly, and work best for non-press exercises in my experience. The add-on kit is a nice option, but the dumbells are already pretty long at 85-90lbs, so it may be impractical for a lot of exercises. They were the first of their kind, they are still a serious contender in this ring. IronMaster: Pros: Well Made. More traditional looking & feeling dumbells. Up to 75lbs as is, and 125lbs with kit. Not as long as PowerBlocks, no awkward pillars to stick your hand in between. Nice stand included. Great bench and other accessories available (better than PowerBlock bench after using both). No rattling or moving of plates when in use. Sturdy and well balanced and made in USA. Excellent for press exercises. Just as quick to change the weight in 2.5lb or 5lb increments as it is by 10lbs or more. Cons: Takes significantly longer to change the weight than PowerBlocks. For press exercises I find this to be less of an issue, but for curls and other quick change exercises it's a bit of a pain. No locking mechanism for the screw in pins. This has never been an issue, or caused a dumbell to fall apart during use, but there's no locking mechanism (or magnet such as PowerBlocks) just friction preventing the pin from unscrewing. I'm not too worried about it, but it has crossed my mind. Overall: These dumbells are best for users who use higher weights for press exercises and want the traditional look and feel of a dumbell you might find in the gym. They don't rattle or move, and are very solid. They also go higher in weight than the PowerBlocks with the add-on kit, and cost less. Not as good for users using ligher weight and requiring quick changes. Conclusion: For me, having both pairs is a pretty good set up, but If I were to choose just one, I would stick with the IronMaster. I like them for their sturdiness and lack of rattling especially when using heavy weight. In addition to the IronMaster, I would buy a cheaper set of adjustable dumbells with a lower maximum weight (50lbs maybe) that could be easily adjusted in 5lb (or smaller) increments to use for curls and kickbacks etc...and stick with the IronMaster for the heavier weights, where I really don't mind the extra minute of rest to change the weight! In fact, I think I will sell my PowerBlocks and get a set up like this, and have some money left over for Muscle Milk! :) P.S. the IronMaster adjustable bench is the BEST I have used! Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | February 21st, 2009
    Good idea, mediocre execution The Quicklock system is very clever, on paper. You add plates, or take them off, and then lock in place by rotating the pins until they stick. For someone who would otherwise need a lot of dumbbells, this is really convenient. Unfortunately, the poor quality of the plates make it extremely time consuming to use. I like to do circuit training and to move fast between exercises with no rest. Let me tell you, if you try to use this system in a hurry you may get injured. I did. This is because the plates don't really match, and as they switch position when you lift, the lock may come undone, unless you are super super careful. Not a very safe proposition. I bought this system because of the raving review. I guess I am the unlucky one who got poorly made plate, or maybe other reviewers don't mind spending 3 minutes switching plates every-single-time. I do. I still use this system, but I ended up buying a gym membership because I find it less time consuming and frustrating than using this system. If you don't mind a forced 'rest' between exercises, this is for you. Too bad: it's a great idea, and I would have given it 5 stars if it wasn't for the poor quality of the plates. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | January 31st, 2009
    Easy to use and solid construction. pretty perfect in every way. solid consruction, easy to use and fun! i like that the weight increments are 2.5lbs. way better toll than other "adjustable" weight sets. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | January 11th, 2009
    Great dumbell set!!!! I was looking for an adjustable dumbell set that would look and feel like regular dumbells, be easy to use, be strong and sturdy, and provide the right weight for every exercise that I do. These are exactly what I needed! I highly recommend them. They are the only weight set that I could find that go from 10 to 75 pounds by 2.5 pound increments and they are not clumsy at all. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | December 7th, 2008
    Do some research, these are the best adjustable db's out there I went to my local Sears and tried out the Bowflex SelectTechs; then I tried out the PowerBlocks that a friend owns. I Came across the Ironmaster Quick Lock system after researching adjustable dumbells online; I heard the Ironmaster name mentioned in a bodybuilding chat forum wherein the original poster had mentioned SelectTechs versus PowerBlocks, and one of the replies mentioned that the Ironmaster was best. I looked at the Ironmasters online, and they are aware that people rarely have a chance to "try before you buy", so they created a very favorable 30-day return policy as a trial period. Impressed by their confidence in their product along with my own research, I decided to give the Ironmasters a try. To make this brief: This is one of the best fitness products I have ever used. I bought the Quick-Lock Dumbell system along with the Super Bench, and the 120lb add-on kit (each DB goes up to 120lbs), the total with shipping and everything was just under $1000. If you buy direct from the IronMaster website, there are usually combo deals available that lower the price of buying items individually. Having these dumbells is as good as having a complete rack of dumbells that go from 10lbs to 120lbs in 5lb increments; but they only take up a few square feet of space! They are not as quick to change as SelectTech or PowerBlock, but they are reasonably quick & easy to change. These dumbells are tough, and like a fixed dumbell at a gym, they don't rattle or have plates sliding around and are FAR and AWAY more strongly built than the competitors. You could actually drop these on the floor at the end of a set and they are more than tough enough to handle the punishment. Unlike the others, Ironmaster INCLUDES the stand with the dumbells. The others sell their stands separately for an extra $150-$300... keep that in mind when comparing dumbells. Also remember that the Ironmasters have a lifetime warranty and are 100% metal, no plastic or rubber parts, strictly iron! Please do your research, and I think you will agree that the Ironmasters are the best bang for the buck. I have been using them for 3 months now and it is one of the best things I have ever purchased. They have exceeded my expectations (and that is quite rare). Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | September 23rd, 2008
    Excellent Weight Set These are hands-down the best adjustable weights I've come across. Construction is solid. No plastic. They feel great. No loose screws or weights making noise. They're superbly designed. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | July 6th, 2008
    Simply the Best and closest to your local gym dumbell These 75lb dumbells surpassed my expectations. At$500 I was expecting allot and I got it. They are extremely well made, solid, heavy, clean and ready to be used by men and women. They start out being 5lbs each just the handles and they come with 5lb plates and a couple of 2.5lb plates. For the most part you go from 5lbs unplated up to 75lbs plated for each dumbell. It is a simple locking screw in each end making it very safe. It has a little "v" groove to show you how to place/hold the dumbells as well as making sure the groove in the end screws match the same location which is "locked" in postion so you have no worries of plates falling off. They are tight fits so the wgts are very tight together and provide little plate clanks when using them similar to what is in many gym plated type dumbells. These are NOT the type that have a "switch" which changes the wgt. You phyically have to unscrew and add or remove wgt, however, that is very simple and quick. I have read where one complained of such, but it is actually your rest btwn sets and you are ready to roll. However, if that is a concern, do not get these as it will require wgt changes as you go. I had road tested some of the switch type and was NOT as impressed as I was with these. Several of the switch type at 75lbs were oversized and limited your range of motion. These do NOT limit your range as they are about the same size as round plated dumbells as some gyms. These dumbells are square in shape but work flawlessly. The only thing better might be to have pre-set hex dumbells on a rack by each 5lb increment. If you have the space and the $1,000 plus you'll need for many dumbells and rack then look into it. If space is an issue, these should be considered. Lastly they come with a very sturdy steel stand that is rubber coated on all flat surfaces. The top shelf is where the dumbells are stored and a good starting point when doing standing exercises and the shelves below can hold the extra wgt plated and other fitness items giving you a rack and storage all in one and able to fit it all in a small out of the way space. They offer an additional set of plates for separate purchase that brings each dumbell up to 120lbs each. The company offering these gives free ground shipping and no sales tax so it's a good deal and provides me with the ability to workout on my schedule completely and all with miminal apartment space and no need for a gym membership. However, I do belong to one but these will allow for the many days of a tight schedule that wouldn't allow for a trip to the gym. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | February 6th, 2008
    If you train heavy, you've got to have them... For quite a while I was interested in the Bowflex adjustable dumbbells, but I'm really glad I found out about the Ironmaster's set before I made my decision to buy such a product. The Bowflex set allows you to lift with up to 52.5 pounds per dumbbell, which is fine for those who don't do heavy chest and shoulder presses, or heavy dumbbell rows; but for those who really want to push themselves hard, there is nothing like the Ironmaster product, since it allows one to lift up to 120 lbs per dumbbell with the add-on kit. And although adding and removing plates might not be as fast as with other sets, the quick-lock set is extremely safe to use. 52.5 pounds per dumbbell would be just about enough for some of us to do chest warm-ups. On the other hand, for those really interested in working out hard at their own home gyms, there is no better choice for a set of adjustable dumbbells than the one offered by Ironmaster. I highly recommend this product. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | October 1st, 2007
    One of my best purchases of any type This product is pretty close to flawless. It is sturdy, takes up the least room of any of its competitors for what it can do, its SUPER SAFE AND EFFICIENT and is really well made. Both buying it directly from the company and their resellers has been an awesome experience. The design of the dumbbells is very strong, so you do not have to worry about dropping the weights. I have the smallest room in my house, and I can get a good work out in about a 4X6 foot area of floor. Additionally, I have somewhat small hands, and the knurled grips are both the right size and texture for a secure grip while lifting. Because the plates stack together, if you have to move the set, it is very easy and efficient, simply stack them together and tape the stack. The Bowflex/Nautilus dumbbells are the only other ones I have tried, and weakness of the mechanism meant a plate slid out and landed on my foot. DO NOT USE BOWFLEX. It is a great product that I endorse wholeheartedly. Posted on Amazon.com
    Quick-Lock Adjustable Dumbbell System 75 lb SetReview
    Reviewer | June 29th, 2007
    The best adjustable dumbells These adjustable dumbbells are awesome. I did a lot of searching when looking for adjustables, and I tried a few different kinds, including the Bowflex Selectechs. These are so far superior than all of those, there's no comparison. The Bowflex Selectechs just felt plain cheap. They are not tight and rattle when you're lifting. They have cheap plastic parts and I just did not feel safe even lifting them over my head. The have the feel of cheap mass-produced made-in-China [...]. These Ironmasters tighten up very snug when you screw the locking pin in. No rattle whatsoever. They feel as tight as the fixed dumbbells at the gym. The only thing the Selectech has over the Ironmaster is that you can change the amount of the weight faster (although it's still pretty easy with the Ironmasters). The Ironmaster is so much better constructed, however, that it's still the easy choice. Very high quality construction. Plus, they throw in the storage shelf along with the dumbbells. I couldn't be happier with this purchase.
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    Adobe PDF document Quick-Lock Dumbbell Instruction Manual

    Adobe PDF document Quick-Lock Dumbbell Stand Assembly Manual