Features1Good elasticity, good hand feeling, convenient for users to grasp, finger strength training, the ball will not fall off. 2It can be used for finger weakness rehabilitation training and muscle strength training for patients with hand injuries. 3Help keep the finger position open, prevent finger flexion and spasm, reduce the tension of your finger. 4The sphere is slightly larger, which can effectively divide the fingers, have a good training effect, and can also relieve muscle tension. 5The oval ball is more suitable for the palm of the hand, easy to clean, strong and durable.SpecificationCondition: 100% Brand New Item Type: Finger Exercise BallMaterial: Ball: Elastic PU, Ball Cover: Silicone or adhesive tapeApplication: Rehabilitation training for hand function problems, finger grip strength, small hand muscle strength exercises and fitnessStrength: Medium strength, good flexibilitySize: Overall: Approx. 12 x 11cm / 4.7 x 4.3in, Ball: Approx. 9 x 7cm / 3.5 x 2.7inPackage List1 x Finger Exercise Ball