Features:
Durable material
Made of high quality steel material, hard, wear resistant and durable, owning long using life span.
Two spring design
The two springs design makes it bring suitable training power.
Adjustable
The spring can be freely adjusted as you want, according to the training strength.
Scope of application
The device can effectively train your hand muscle, widely suitable for woman, man, teenager and so on.

Specifications:
Type: hand muscle tool
Quantity: 1pc
Material: steel
Color: silver

Package:
1* hand muscle tool