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The gold standard for building and testing hand strength.
Captains of Crush Grippers are the single most important grip strength tool you can choose for the fastest route to the strongest grip.
No. 3.5: Bridge the gap between the CoC No. 3 and the CoC No. 4. IronMind will certify your accomplishment if you close a No. 3.5 under official conditions.
Please see our product pages as they are available in 11 different strengths, from 60lbs to 365lbs.
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