Muscle King Hand Grips for Strength Training, Wrist Training, and Rehabilitation, Adjustable Load

[Wrist & Arm Strengthening] This arm strength training device strengthens your wrists and arms. It strengthens and tones your grip and forearms, tones your upper arms, and improves performance. [Excellent Use] This grip strength training device is ideal for sports that require frequent wrist use, such as basketball, baseball, tennis, badminton, and volleyball. [Adjustable Size & Resistance] These hand grips are adjustable for various palm sizes and palm position. The wide range of resistance adjustments makes them ideal for men's strength training, as well as women's and rehabilitation. [Portable] This compact wrist training device is extremely portable, allowing you to train at home or on the go. [Caution] 1. Before use, make sure the protective gear connections are secure and not loose. 2. Select a level of arm fitness to avoid straining your muscles. 3. To avoid hand injuries, a relatively spacious area should be used. 4. Children under 12 years of age are not recommended to use the device.