Set of 2 Colors: Black + Gray Power fingers not only improve the strength of your fingers, wrists, and forearms, but also have a relaxing effect after training. The feel of the finger stretcher varies depending on the strength level, allowing you to train according to your needs. Finger Power Set of 2 Finger Trainer Grip Training Grip Strength Training Wewiken Adjustable Strength Grip Strength Enhancement Tool Grip Strength Recovery Grip Trainer Power Grip Grip Strength Training Stress Relief Easy to Use (Gray & Black) *To offer the product at a lower price, we may ship it without the box due to shipping costs. *Also on sale~* #NaapoShop 41-21 / 995