Description:This term is suitable for computer work, basketball playing, badminton playing, and so on. With its small body and light weight, you can massage you hand by squeezing, rolling, and pressing this ball anytime, anywhere.Features:1. This term adopts silicone material and textured, and gives a fantastic and comfortable touch feeling.2. Suitable for training flexibility of fingers, exercising hand muscle and enhancing hand strength.3. Squeeze, roll or press the ball to relieve tension.4. Due to its small body and light weight, convenient to carry and you can relax your hand anywhere, anytime.5. Suitable for those people, who are rock climbers, body builders, computer workers, badminton lovers, etc.Specification:Item Type: Grip BallMaterial: SiliconeDiameter: 53mm/2.08inchApplicable People: Most PeopleHardness Coefficient:Red: 25.