specification: Item Type: Power Wrist Ball_x000D_Material: ABS_x000D_For People:_x000D_Sports Enthusiasts: Use wrist ball exercises to make it more tense and more powerful._x000D_Office Crowd: Exercise with wrist ball can keep away from sub health or relieve the discomfort caused by carpal tunnel syndrome._x000D_Students In School: Promote bone development, enhance grip, wrist strength, arm strength, and finger flexibility._x000D_Wrist Injury: Use wrist ball exercises to speed up the flexibility of the hand after the injury is healed. Features: 1High Quality Material: Exercises ball is Made of high quality ABS material, it is comfortable to use and can be used for a long time. 2Strong Response: There is a strong response at high speed, the faster the speed, the greater the strength, and the greater the effect of exercise. 3Reduce Inflammation: Forearm ball can help reduce inflammation caused by arthritis, carpal tunnel syndrome, RSI or tendinitis. 4Exquisite Gift: Ball is not only a strength training equipment, but also a gift, you can give it as a birthday gift or Christmas gift to your family or friends. 5Strengthen Your Wrist And Forearm: Ball can generate huge power and do more workout than you think it could be for your forearm. PackageList: 1 x Wrist Ball 1 x Lanyard