Use it to be healthier 1. Strengthen your hands, fingers, arms and wrists. 2. Speed ​​up the rehabilitation of hands and arms after surgery. 3. Releases movement and reduces tension and daily stress. 4. Relieves the pain and stiffness of arthritis, increases flexibility and regains mobility. Main exercises: 1. Complete finger exercises: Hold the ball with your fingers for 2 seconds, then slowly release your fingers. 2. Single Finger Exercise: Open and spread against the ball for 1 second. 3. Repeated exchange practice: Hold the ball from the little finger to the thumb, open all fingers from the thumb to the little finger and hold the ball. Product category: Grip Material: PVC Specifications: Length:14cm/5.5inch, height:6cm/2.4inch Color: Blue/Green Applicable scenes: Fitness equipment, fitness body, health massage Using crowds Please: Stroke Rehabilitation, Dialysis, Blood Transfusion, Wrist Joint Training Buyer Caution: 1. Do not pull on your finger holes when using. 2. Do not pierce the surface with such sharp objects, fingernails.