At the beginning of exercise, the silicone grip force ring is placed in the palm of the hand, and the opening and closing of the
hand will follow the silica gel grip
The elasticity of the force device, do a small amount of exercise clench fist action.Hold on for two or three minutes, palm to
finger
You will feel sour and swollen. At this time, your fingers are stretched out from your fingers to your fingertips
Get plenty of exercise.
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