Prohands Gripmaster Rehab Hand Exerciser, Finger Exerciser (Hand Grip Strengthener), Spring-Loaded, Finger-Piston System, Added Palm Cushion, (0.75 lb XX-Light Tension, Tan-Gripmaster Rehab)

Gripmaster is the original spring-loaded finger piston system. Daily use conditions and rehabs the hands, wrists and forearms by flexing and toning the muscles, ligaments and tendons. Use each button independently to exercise fingers or compress the entire unit for complete hand and forearm strengthening. The flexible latex-free ergonomic base conforms to the users palm, cushions impact and significantly increases attainable range of motion. Progressive color-coded resistance gives users positive feedback. Comes with exercise program developed by a licensed hand therapist.