Exercises to strengthen the finger knuckles without injury. Do it to help relieve strained.
It allows the holder to exercise all of the cells effectively.
It also helps the blood circulation in the hands.
Made of high quality PU foam material, non toxic and tasteless.
Squeeze Ball that will make you relaxed your hands.
Specification:
Material: PU Foam
Weight: About 13g/pc
Color: As Shown
Diameter: 6.3cm
Quantity: 6pcs
Package Including:
6 x Squeeze Ball