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[6 in 1 hand training device set] 6-piece grip device equipment has 1 adjustable handle, 1 finger stretcher resistance band, 1 finger trainer, 1 grip ring, 1 stress relief ball and massage Ball to strengthen and exercise your hands, fingers, wrists, elbows and forearms
[Automatic counting]: The finger trainer of the hand trainer has a counting function, which can clearly record the number of exercises. All you need to do is focus on exercise and increase your grip.