- The massage bump design stimulates the hand acupoints, trains the grip and promotes circulation.
- Four-finger hole design, the finger hole can better fix the hand and prevent slipping.
- The size is small, convenient and easy to use, easy to carry, and ready to use.
- The TPR material is safe and secure, has no peculiar smell, and is easy to clean.
- The sphere feels good, hollow design, light weight, moderate hardness and good elasticity.
