Features 1、3D Massage Points: 3D massage points are designed with multiple convex points to activate acupuncture points and massage palms, which can effectively massage palm acupoints while exercising grip. 2、Relieve Discomfort: Hand therapy ball provides a healthy way to relieve stress and muscle tension, can relieve symptoms of arthritis or carpal tunnel. 3、Suitable Size: The length of the rope can be adjusted, it is not easy to fall when pinched, it can relax the hands, relax the massage, and relieve fatigue. 4、Acupoint Massage In Reflection Area: Combined with traditional Chinese medicine palm holographic therapy, stimulate acupuncture points, regulate vital energy and blood in the internal organs, and reduce diseases. 5、Hollow Soft Ball: It is lighter than ordinary massage ball, and it has a better grip and thorny surface, which can stimulate the hand more, and it is soft and does not sting. Specification Item Type: Hand Stress Ball Material: TPR Function: Exercise finger and arm strength. Size of grip ball is not large, just in the palm of hand, grip strength For People: 1. Extensor muscles and finger extensor function exercises to prevent and correct contracture stiffness. 2. Paralysis of wrist extensor and finger extensor muscles (radial nerve palsy). 3. In patients with hemiplegia, fingers and wrists are dysfunctional, and the fingers and wrists are weak. Through training, muscle strength and joint activities of related parts can be improved. 4. Control increase of flexor muscle tension and atrophy of thenar. 5. Prevent finger flexion and spasm, prevent finger joint deformation and deformity. 6. While correcting fingers, it assists in training flexibility of fingers. Package List 1 x Hand Stress Ball