RMS Hand Exercise Balls - Physical Therapy and Occupational Therapy Kit to Strengthen Grip and Reduce Stiffness - Arthritic Pain Relief Exerciser - 4 Pack.

RMS egg therapeutic balls help keep your hands, wrists and forearms strong and flexible. Therapy balls have a unique egg shape that adapts to the contours of your palm. They are made of soft, flexible thermoplastic rubber and are available in 4 levels of resistance for progressive therapy. The blue therapy ball is extra firm. The red ball is firm. The green ball is average. The orange ball is soft. RMS Hand Exercise Balls help strengthen any finger and thumb and improve finger coordination and mobility. It also reduces pain and stiffness and increases circulation in the forearm, wrist and hand to improve flexibility. It is a great gift for anyone.