Fitness hand grippers

Product information : 

Non-slip handles covered with soft, comfortable and durable for frequent and comfortable use.

Uses to improve strength, power and in wrists, fingers, forearms, hands.  

Product details:    
Product specification: 9x12.5 cm 
Net weight: 100g / piece    
Material: PP + chrome plated carbon spring steel + sponge sleeve  
Specifications: blue, green, yellow, red.  
Product Name: sponge grip     

Product image: