Hand grip strengthener Kit】 The hand strengthener set includes 1 adjustable hand strengthener , 1 finger dumbbell, 1 grip ring, 1 egg-shaped grip ball, 1 finger stretching band, 1 finger exerciser (13LB, 17LB, 21LB) with 1 wrist strap, and comes with a storage bag. You will be able to use them to optimally train every muscle in your hands and forearms.