Name: Finger trainer
Material: silicone
Color: black, blue, gray
Size: 9.0cm
Wrist hole diameter: 5.5cm
Four finger diameter: 2cm
Peculiarity:
1) Silicone material: soft and comfortable feeling, high elasticity, not easy to crack, long service life
2) Exercise finger strength, train wrist strength, strengthen hand strength
3) Ergonomic design
4) Small size, easy to carry