Sammons Preston Exercise Stik, Upper Extremity Exerciser and Strengthener for Forearms, Wrist, Fingers, Rehabilitation and Therapy Exercise Stick for Supination and Pronation Compact, durable upper extremity exerciser with foam padded handles strengthens forearms, wrists and fingers Ideal for individuals who require rehabilitation or recovery from shoulder, wrist, or forearm injuries Can be used to improve pronation and supination after a wrist fracture or injury Easily adjusts from near zero to resistance that requires isometric contraction to increase wrist and forearm strength Foam grips for comfortable and secure grasp while exercising