Material: environmentally friendly silicone
8.8 cm in diameter, and 2 cm in thickness,
Made of high-quality silicone, not easy to wear. Washable, can be used frequently, and feel comfortable.
Strengthen your wrist, improve the flexibility of your fingers and increase the strength of your hands, and reduce fatigue.
Portable, convenient to put in a bag or pocket. You can get constant repetition, in the office or anywhere
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