Description: 1. The hand exercise decompression ball is made of TPR material, which is strong, wear-resistant and tear-resistant. 2. It may become dirty after long time use, you only need to rinse with warm water and detergent. 3 resistance level of 3.3 levels can effectively treat and relieve carpal tunnel syndrome, arthritis, tendinitis and RSI/repetitive strain injury, which is very suitable for preventing injury and recovering after injury. 4 Scenarios: children with anxiety, autism and attention deficit hyperactivity disorder, exercise the ability of fitness hands, relieve anxiety and improve the attention of office workers, and recover after injuryification: Material: TPR Color: Purple, Orange, Green Three Resistance Levels: Soft, Medium & Hard Package Includes: 1 *Purple Hand Pressure Relief Ball 1 *Orange Hand Pressure Relief Ball 1 *Green Hand Pressure Relief Ball 2*Hand Exercise Finger Exerciser Kit Note: 1. If you have any questions, please contact us and we will reply you within 24 hours. 2. The product has two combinations, please choose your favorite color combination.