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Fat Gripz - The Ultimate Arm Builder

1,624 customer reviews
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  • Fat Gripz are the new worldwide training phenomenon which helps add muscle and strength to your upper body (especially your biceps and forearms). They are used by thousands of athletes and military including champion bodybuilders Jay Cutler and Phil Heath, many NFL players, Special Forces soldiers, UFC fighters and CrossFitters
  • Fat Gripz work by instantly converting barbells, dumbbells and pull-up bars into THICK BARS so that you can train the way many pro athletes do. Using a thicker diameter bar causes much greater muscle activation throughout the arms because it forces them to work much harder. This increased muscle activation leads to bigger, faster gains in muscle size and functional strength (especially in overall arm size). You will literally feel the difference from the very first time you use them
  • Made from a high-density material a lot like extra tough rubber - they are built to last a lifetime and won't compress even if lifting extreme loads. They have a slit on one side which allows them to be pulled open and fitted tightly round barbells, dumbbells and chin-up bars in less than 3 seconds. IMPORTANT: TO ENSURE YOU RECEIVE GENUINE FAT GRIPZ MAKE SURE THE LISTING SAYS "SOLD BY AMAZON
  • Thick bars and thick-handled dumbbells are VERY expensive (thousands of dollars). Fat Gripz cost less than one tub of protein powder and will last a lifetime
  • No need for new exercises or extra sets - just put Fat Gripz on your weights and use them during your workout to super-charge your gains. Every pair of Fat Gripz comes with a highly effective training program to help you achieve all your strength and physique goals. Whether are interested in building a great physique, sports performance or raw strength and power Fat Gripz will help you get there faster
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Product Description

Fat Gripz are being used by many top bodybuilders, pro athletes, US Special Forces soldiers, MMA fighters and thousands of people around the world. Thick bar training with Fat Gripz immediately targets your body's weak links - increasing muscle activation and giving you more strength and mass. Fat Gripz fit virtually all barbells, dumbbells, chin-up bars and cable attachments in seconds - making the bar more than twice as thick Made from a military-grade high-density compound, they grip the bar like a clamp and don't compress.

Product Details

  • Product Dimensions: 5 x 2.2 x 2.2 inches ; 1.2 pounds
  • Shipping Weight: 1.3 pounds (View shipping rates and policies)
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • Origin: USA
  • ASIN: B005FIS14Y
  • Item model number: 01
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (1,624 customer reviews)
  • Amazon Best Sellers Rank: #1,224 in Sports & Outdoors (See Top 100 in Sports & Outdoors)

From the Manufacturer

fat gripz
arm wrestling
forearm training

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

246 of 270 people found the following review helpful By carlos quinones on July 17, 2013
Verified Purchase
I rarely write reviews. Just selfish I guess but I have to share since I have heard so much about these and have read some negative comments.

#1 The good: I buy a lot on Amazon, I shop for bargains everyday and I like quality over quantity. I always say, "skimp on price you will buy twice". These are tough made, solid construction devices. you get your moneys worth and unless you have a dog with a strong jaw use them as a chew toy, they just may last upwards of ten years. They go on and off easily.

#2 The bad: On two of my bars there is a gap. On one it is barely noticeable on the other it is maybe 1/2 an inch. Here is the secret..ready.... move the darn grip! If you rotate it you can make it face out , in, up, down or against your hand, if you wear gloves this isn't even an issue. So if you want to get these do not let those reviews scare you off. Common sense is available to all.

#3 The ugly: I just did bi's and tri's with these, I had to lower my weight and my forearms are so hurt I am typing veeerrrryyyy slowly. These surpass what I expected and if you are looking to fullfill your workout routine with huge arms and empower your forearms and grip to maximum results use these and when these get "old" get the Extremes. BUT do not think you can do the extremes NOW... these regular one will humble you.

As for the person who posted that these rotate around the bar, etc. If you are using these on a bar that is so thin it rotates around, do yourself a favor... return the bar to the elementary school you got it from and get an adult bar...I can not fathom in what world these will rotate around a bar for an adults gym.

If you are using these for pull ups and there is some rotating...THAT i can understand...
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106 of 117 people found the following review helpful By Ty on November 13, 2011
Verified Purchase
I was considering buying a fat bar, but after coming across so many good reviews (and video reviews if you look for them) I decided to give Fat Gripz a try. I haven't used a fat bar before, but I can imagine these are similar enough that you can use them for most of the same lifts. I'm not sure I'd try any olympic lift variations using them. (This concern may just be because my grip strength isn't "quite there" yet.) I have used them for straight leg dead lifts and they stay on pretty comfortably. Additionally, I think they have an advantage vs a fat bar because you can apply them to ANY bar or dumbbell. Fat bars are pretty standard, not lots of variation. These can be slapped onto bars, dumbbells, cable attachments, pull up bars, special bars, etc.
A couple things I was concerned about that I learned after ordering:
-They are VERY heavy duty rubber. I used them on a brand new texas power bar (DEEP knurling) and it did nothing to damage the rubber.
-They attach and detach simply, you need two hands to pull it open and it just clamps on the bar
-They retain their shape very well after removing from the bar (not stretched out)
-Each fat Grip itself is pretty heavy (not so heavy that I would say "I benched 302 pounds counting the fat gripz" but heavier than I expected,) which is good in my opinion.

The only thing I'm not crazy about is that when they are placed on an olympic bar there is ~1 cm gap on the opening side. I'm not sure how/if fat Gripz could fix that, and it really isn't a huge problem. It just takes a little getting used to. I found the positioning of that gap is important and different for a push vs a pull. This is part of the reason I don't think I'd olympic lift in them.

All in all I'm very happy with them and they certainly do humble your grip strength the first time you use them. I look forwards to regularly using them within workouts.
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68 of 78 people found the following review helpful By Big Daddy Mike on April 7, 2012
Verified Purchase
These things are intense. A little pricey, which is why I held off for awhile before buying them, but well worth it. If you're looking for a fantastic and simple (not to say easy) way to increase grip strength and forearm development, these are the ticket. I've only been using them for a week and already I'm feeling results. Beware: if you use them on deadlift or rowing exercises, be prepared to be humbled. Quickly. I didn't really see a big weight or volume reduction when using them on curls (some to be sure) but WOW, when I used them on deadlifts, I couldn't get beyond my warm up weight for sets of six before my forearms were screaming. Even then, I had to reset my grip after every two reps at least. Looking forward to continuing to challenge myself and build Herculean forearms with these. 5 stars.
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23 of 26 people found the following review helpful By Simmer on November 15, 2013
Verified Purchase
These Fat Gripz seem pretty awesome so far. As others have said, they do make it harder to lift and you need to lower the weight when starting out.

My only gripe with these is that they do not fit on my Power Blocks. The are about .5 inches (maybe even less) too long to fit inside the blocks inner dimensions. I am contemplating cutting them down to fit inside the blocks.

Overall, I recommend these Fat Gripz.


As mentioned, I decided to cut these grips down to size. The Gripz are SOOOO close to fitting inside the Power Blocks, that I could almost probably just sand the edges a little and it would be good to go. However, I decided to use a saw instead.

Here are my thoughts on cutting these down to fit in power blocks.....they make for a VERY tight fit. I can imagine this will not work for everyone. I am 6"1 and have very big/long hands, however, they are not very thick. So while I can fit my hand inside the powerblocks, my wrist and fingers are pressing against the bars inside the power blocks. Most will find this unpleasant, however, I actually like it a lot better because it keeps the blocks from swinging around....and that is something I always did not like about the power blocks anyway.

Other than the power block bars themselves pressing against my fingers and hand slightly, the gripz when used with the power blocks feels AMAZING!

If anyone is willing to try, I suggest using a box cutter instead of a saw. The saw makes for a sloppy edge that I had to sand down. I think a box cutter will make a much nicer cut. Just be careful if you decide to go any route.

I still need more time to work out with them inside the power blocks. Ill update my post in a few weeks.
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Fat Gripz - The Ultimate Arm Builder
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Price: $38.93
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