Product Information Tune-Up grippers or IMTUG are designed to build the worlds highest level of hand strength. It takes advantage of the fact that your fingers are different in length and strength and allows you to focus your training on specific areas. Level 1 is the easiest Level 7 the hardest. If you are using Captains of Crush No.1 then you will need Level 3 or 4. You will probably need 2 or 3 levels for complete training..
Price: £22.50
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