Meet the Power Twister: a chest arm expander that lets you improve your grip and build strength in your fingers, wrists, and forearms. It comes with a magnetic lock and adjustable resistance. The Power Twister has an ergonomic design and fits large and small hands.
More gadgets like this ➡️ : here
This tool can prove useful to MMA athletes, boxers, gymnasts, and CrossFit enthusiasts.
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