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Leather is a heavier wrap as compared to lighter suede
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Thumb Trainer 60 Leather is a heavier wrapSpring loaded masterpiece Stainless steel and wood spring loaded thumb isolation trainer made by grip community legend EatChalkGetBig. Comes with three springs that take around 15, 30, and 45 lb of force to compress the thumb pad flush with the handle. Over tightening can slightly increase the resistance, and under tightening can slightly decrease the resistance. Interchangeable springs Change springs by twisting to unscrew the inner plastic ring from