1.Exercise Hand grip,finger gripper, 2.fitness strength, power grip,gym,health 3,sport item, piano gift, recovery,training HAND GRIP EXERCISE'S ESSENTIALS FEATURES: 1,Strengthens each finger individually2,Available in 4 graduated resistance levels, finger power:5kg,10kg,15kg,25kg ect different power for various people, meet different requirement3,Ergonomically designed palm and finger grips4, ...