An effective tool for injury prevention, injury rehabilitation, improved sports performance, improved ability to perform daily tasks, and stress relief Versatile: Acts as a hand therapy ball (light and moderate tension) to increase strength and range of movement, making it an ideal gift. It is designed to stimulate blood circulation, massage muscles, improve circulation and relieve tension. Relieve stress with grip hands: You can use foot, leg, hip, hands, arms, palms, shoulders and head massage. Strengthen your hands, forearms and fingers with simple exercises to relieve the pressure of everyday life. If you are suffering from arthritis, rheumatoid arthritis, tendonitis, carpal tunnel, tennis elbow, wrist fracture or fracture, or recovering from tendon surgery, this is the best gripper.