Lets you gradually increase the difficulty of the training as your strength increases. Perfect for beginners to professionals, relaxing or competitive. Also suitable for the elderly and those with arthritis. Lightweight and easy to carry with you 2. Comfortable silicone material Our grip silicone ball is made of silicone material, which is healthy and environmentally friendly, skin-friendly, non-irritating and tasteless, flexible, not deformed after long-term use, and resistant to pulling. 3. Ergonomic design The handle for decompression exercises is ergonomically designed. Using this product, the five fingers exert a balanced force during training, which can effectively prevent the deformation of the fingers from contractures, and the product will not fall down due to the inflexibility of the patients fingers. Regular use of it helps to improve finger flexibility and enhance grip. 4. Durable and easy to wash Can be washed directly with water, then avoid exposure to the sun, and dry naturally in a ventilated and cool place. 5. Lightweight and Portable: Easy to carry, you can exercise anytime, anywhere. Perfect for walking, traveling, going to school, watching TV or anywhere you want to exercise. Strength: 20 pounds Number of pieces shipped: 1 piece Product color: green Product size: 9.7*11cm TH