1Elastic Rubber Band: With good elasticity, convenience for gradual training, can adjust the strength to suit yourself. And rubber band is long lasting, will not easily break up. 2Adjusted Strength: Can be adjusted by the number of rubber band hanging on T hook, can be adjusted at will, simple and convenient operation, to meet the needs of different people to exercise. 3Hand Training: Exercises the wrist and forearm muscles, for wrist and arm strength training, and for wrist pronation and supination exercises 4Comfortable Grip: Handle area is used foam material, which is soft, skin friendly, comfortable, and will not scratch or damage the hand skin. Also is flexible for providing an easy grip during exercises. 5Suitable People: People with wrist injury, hand function problems, need rehabilitation training, suitable for middle aged and elderly fitness exercise.