Silicone Grip Ball Rehabilitation Training Finger Palm Hand Grip Strengthener Finger Exerciser Extrusion Grip Ball Stress Relief Features: It can enhance your grip, hands, fingers, forearms - non-slip finger grip, ergonomic handle contour for palms, more comfortable. Suitable for relieving stress, hand movements, relieving pain and typing, carpal tunnel, and tendonitis. It can prevent tension and stiffness in hands, fingers and wrists. Suitable for relieving hand pain massage. It is made of high-elastic TPR material, has no odor, and has no sweat after long-term use. Finger exerciser ball and hand intensifier, athletes, musicians, seniors, patients, etc. Good grip training equipment. Lightweight and easy to carry, you can exercise anytime, anywhere. Take a walk, travel, go to school, watch TV or whatever you want to exercise. Information: Product Name: Household Silicone Grip Ball Rehabilitation Finger Palm Material: TPR Product use: refers to the strength of the grip exercise recovery, leisure play, etc. Features: no smell, environmental protection, not sticky. Product hardness: blue is slightly soft, lemon green is moderate, orange is slightly hard Specifications: The overall size is about 10.5x9.5CM/0.34x0.31 in, the diameter of the middle sphere is about 5x3.5CM/0.16x0.11IN, and the thickness of the edge is about 1CM/0.03IN. Package Included: 1 x household silicone grip ball