Cannon PowerWorks

Heavy Grips HG300

HG 300 "The Gripper King" - Although there are well over 20,000 HG 300s on the market, Heavy Grips estimates that there are less than 250 athletes worldwide that can do reps with this gripper. But, most male athletes (and there have been a couple of women) with an average-sized hand can build up their hand strength to close the HG 300 for at least one rep if they train regularly. The key to closing the HG 300 is consistency with your hand strength training and avoiding overtraining.


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