【MATERIAL】High-quality TPR material, tough and flexible. The two hand grip exercise balls have two hardnesses of 10 pounds and 15 pounds respectively.
【SUITABLE FOR THE CROWD】This hand grip strengthened squeeze ball is suitable for all adults and teenagers whoes hands are overused, so lead to their hands feel tired.
【USE EFFECT】This hand grip squeeze ball kit can reduce the soreness of the hand well and stimulate the touch nerve of the hand. It makes your hands feel very decompressed.
