PROHANDS Gripmaster Hand Exerciser, Finger Exerciser (Hand Grip Strengthener),

Prohands Gripmaster is the original, patented hand exerciser with individual power buttons. Now that our patents have expired, many imitators have appeared, and these products do not have the engineering and quality which goes into every hand exerciser we make. Beware of inferior quality imitation products from Asia. Prohands is the very best hand exerciser used by professional athletes, world-class musicians, and as a rehabilitation tool. Made from high-quality components ABS plastic, stainless steel springs and FDA-approved santoprene. With Prohands you can exercise each finger individually, or the entire hand. Use each button independently to exercise fingers or compress the entire unit for complete hand and forearm strengthening.