Three-dimensional massage point, with many convex points, activates acupuncture points, massages the hand, relaxes massage and relieves fatigue. Acupoint massage project in the area of reflection of traditional Chinese medicine, stimulates acupuncture points, regulates yin and yang qi and blood in human internal organs, promotes health. Cross design, if the user's fingers are not flexible, cross design can effectively prevent the ball from falling out. Breathable and not stuffy, raised bumps can effectively reduce the contact between the skin and the ball, hold comfortably. Suitable for hand rehabilitation training, exercise strength and finger flexibility, comfortable and practical. Specification: Item Type: Finger Exercise Ball Material: TPR Size: Approx. 12,3 x 9,3 cm / 4,8 x 3,7 inch Product introduction: Using durable, flexible materials, flexible, suitable for all ages, can exercise hand muscles and finger flexibility and is suitable for basic strength training and rehabilitation training. Function: Exercise finger and shoulder strength. The volume of the training ball is not large, just hold it in your hand, hold the ball in your hand and pinch it firmly, you will feel the pressure of the ball on your fingers. In general, if you hold it N times, you will feel numbness and warmth in your hands, and then you will feel very comfortable. Because when the exercise ball is pressed hard, the flexible ball deforms and fills your hands. When the hand becomes loose and tense, the ball can effectively stimulate the main points of hand acupuncture to achieve the effect of exercise and health care. Basic exercises: Hold the exercise ball completely in your hand and do ten times the hand stretching exercises, first doing the right hand exercises, then the left hand exercises, alternating exercises. Relevant persons: 1. Exercises of the functions of rectifiers and finger rectifiers to prevent and correct the stiffness of contractures. 2. Paralysis of wrist extensors and finger extensors (radial nerve injury). 3. In hemiplegic patients, the fingers and wrists are dysfunctional and the fingers and wrists are weak. Through training, you can improve muscle strength and joint activities of the related parts. 4. Control the increase in flexor muscle tension and wither muscle atrophy. 5. Prevent bending and shrinkage of fingers, prevent deformation and deformation of finger joints. 6. When correcting fingers, it helps in training the flexibility of the fingers. Use: 1. Insert four fingers 2. Hold the ball 3. Loose and grip 4. Hand training List of packages: 1 x ball for finger exercises