With the Gripmaster Pro hand strengthener you can excercise each finger individually or give your entire hand a workout.
Features
Extra-heavy spring tension is intended for motivated individuals who require extreme and extraordinary grasping power; recommended for people with stronger-than-average hands
Features individual spring-loaded buttons for each finger; extra-heavy spring tension provides 11 lbs. of resistance per finger
Pocket-size gym strengthens fingers, hands, wrists and forearms