GD IRON GRIP Grip Strength Trainer Adjustable Hand Gripper Strengthener Hand Grip Exerciser Wrist Strengtheners Silent & Durable – Forearm, Finger & Hand Strength Training for Athletes, Climbers & Rehabilitation

Far and above the best, most well designed, and solid grip trainer I have ever tried.All the manufacturing is fantastic, with tight tolerances that show high care in design.

This is the type of review I kind of feel bad about writing because the vast majority of my grip strength comes from another company's products. I own Captains of Crush grippers, even their Imtug and a couple of their Zenith grippers but it is a hassle to keep up with them, store them, etc...I am certified on Captains of Crush #3 but I never use it for workouts. I can get around 5 reps with the 2.5. The 2 is where I can go to 12. The GD Iron Grip Ext 90 covers the range of the Captains of Crush "Guide" gripper to the #2. Seeing those are the ones I do workouts with it's all I need.An added bonus with the Ext 90 are the extensions you can connect to the handles. It includes an Allen wrench and two extensions with two bolts. If you have wide hands like I do, you find yourself fighting to keep your pinkie on the gripper. The extension fixes that. It's not only good for strength in all fingers but it also allows you to train your pinkie which is a very important finger in heavy weightlifting and grip competition.This set unlike the GD 70 and below is made of cast, knurled metal. I know knurling isn't for everyone. I personally prefer it. It takes away the soft hands/palms.One thing I was interested in the way you change the weight/resistance. It's much easier than I expected. If you look at the picture of the gripper there a is a tab towards the back of it. You put the slightest pressure on it and squeeze the handles just a little. It unlocks it and you can slide the resistance up and down. Once you squeeze it again, it locks in on the new weight.I was surprised at the quality of this item. There hasn't been even a slight squeak from the spring. It's an excellent product for those, especially, that are already strong in the grip area but could be used on the lowest tension by beginners too. Well worth the price to be able to have the equivalent of multiple grippers in one easy to use device.

excellent quality. i am very impressed. it is pleasing to the eye and fun to use to workout. for years i had to lug around 8 different captains of crush grippers but that is just more convenient. although this gripper is awesome and well worth the money, ill detail the pros and cons, and compare them only to the COC grippers since i have no other standard to compare them to.pro -good price for quality. dont buy the GD90 because it is litearally the same design except slightly heavier spring.great quality. perfect fitment and alignment, everything is steel/stainless/aluminum, except the caps of the spring ends which seem to be plastic. even the hardware is good quality, and it seems some parts are riveted but very secure.convenient. the weight basically is very similar to the COC guide, trainer, .5, but then the next 3 are a bit heavier than the others 1, 1.5, and 2. but overall its easy to get different kinds of strength training, depending on reps, holding, or maxing out.single plane pivot, no axis. unlike the COC grippers, this one feels more natural since it pivots on a pin, instead of a large rotating spring.cons -small range of motion. unlike the COC grippers, the range of motion is noticeably less. it doesnt open up as widethe strength increment seems to increase faster than the COC grippers, meaning that the kind of spring feels harder the more you squeeze, but at a much greater rate than the COC grippers. maybe just the designeach setting is very noticeably different. i wish there were more or finer settings for weight. once i move up to the next one, it just feels impossible.knurling is not as sharp - grip is easier on your skin but not as overall grippyOther thoughts - because the fulcrum/pivot is further from the handles compared to the COC grippers, this one feels different. its not better or worse, but when the gripper closes, the handles are parallel, whereas the COC gripper has a more motion near the pinky than the index finger. also, the numbers on this gripper seem much more difficult than the COC grippers. for example, the COC 2.0 is advertised at 195lbs, and i can close it consistently. however, the highest setting on the IG80 is 176, and i'm only about 80% able to close it. I initially thought i might need to buy the IG90 but good thing i saved $20 because i can't fully close this one.Conclusion - its a different kind of gripper and well worth the money. i keep this in my car and train forearms when sitting in traffic, and only need 1.