It can be used as a hand therapy ball and stretcher. Excellent for conditioning the hand extensor muscles. Excellent for preventing hand fatigue, arthritis, strain, and the early stages of carpal tunnel syndrome. HIGHLY RECOMMENDED for people who work with both hands all day, such as athletes, musicians, and typists, or for anyone who needs therapy. They are made of plastic, are smooth and soft, and can be adjusted to fit your needs without hurting your hand. Three finger resistance tensions to help strengthen the forearm and relieve tennis elbow. Tennis elbow requires both outward and squeezing strength to heal. Increase your strength by using three tensions (heavy, medium, light).
