IronMind Captains of Crush (COC) Hand Gripper - The Gold Standard of Grippers | The World's Leading Hand Strengthener

It’s super difficult haha I would recommend you guys to get the lower one if you’re completely new but overall quality is amazing

this gripper is very well made and has helped with regaining strength in my hand, I will be moving up to the next grip in the series shortly, highly recommend.

Puro metal para fortalecer tus manos y antebrazos. Si es el primero que vas a comprar, busca uno de menor dureza ;)

Excellent grippers! Recommend

As someone who’s serious about strength training, the Captains of Crush Hand Grippers have become an essential part of my routine. I’ve purchased the Trainer (100 lbs), 0.5 (120 lbs), No. 1 (140 lbs), and No. 3 (322.5 lbs), and they’ve proven to be the standard for grip strength development at every level. Build Quality The craftsmanship on these grippers is unmatched. The knurled aluminum handles provide a secure grip, even during intense workouts, and the spring mechanism is built to last. These feel indestructible and are clearly designed for people who are serious about increasing their grip strength. Progression and Challenge Each gripper offers a unique challenge: Trainer (100 lbs): Perfect for beginners or as a warm-up tool for advanced users. It’s a great starting point to build confidence and form. However if you already have a strong grip you may want to pass this one for the 0.5. 0.5 (120 lbs): A slight step up from the Trainer. It bridges the gap between beginner and intermediate levels, making it a staple for building grip endurance and strength. If you struggle with the No. 1, but find normal grippers easy this is a great option. No. 1 (140 lbs): A true benchmark for serious lifters. After many, many, many failed attempts, closing this for the first time felt like a significant milestone. In fact I've still not managed to close it with my left hand, and it may be several months before I get to that level. No. 3 (322.5 lbs): I foolishly purchased this years ago thinking my grip was above average. I can't even close this bad boy with 2 hands yet. However while I haven’t closed it yet, it serves as a motivating goal and still offers a lot just from the attempts. However if you haven't closed the 2 or 2.5 I would recommend you pass on this one. My Experience I became interested in grip when it started becoming a limiting factor in my deadlift before I finally adopted straps. I still incorporate these grippers into my routine 2–3 times a week, using the lighter ones for warm-ups and endurance training, while pushing my limits with the heavier grippers. Now that I've finally closed the No. 1, I plan to master it before progressing to the No. 1.5 and eventually the No. 2. It's also a lot of fun to see friends and family attempt them for the first time! Who It’s For Whether you’re a beginner, an intermediate lifter, or a seasoned athlete, Captains of Crush has a gripper for you. The progression system allows you to scale up as your strength improves, and the quality ensures these tools will last for years. Final Thoughts Captains of Crush Hand Grippers are more than just a training tool—they’re a benchmark for grip strength enthusiasts. You can even check their website for the leaderboard of people who have closed them in competition. If you’re serious about improving your grip, these are a must-have. Just be prepared to work hard and feel incredibly rewarded when you crush your goals.

They may be a little squeaky to begin with, but I applied some vaseline and it's good to go!