Name: Finger trainer
Material: silicone
Color: dark green, light green, light gray, black
Size: 7.5cm
Large finger hole diameter: 1 .6cm
Four finger diameter: 1.4cm, thickness 0.6cm
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