Features 1、Adjustable Resistance: Ranging from 10 to 100kg, this hand grip strengthener allows for customizable training strength to cater to a diverse range of users. 2、Electronic Counting Feature: The four digit digital display enables easy tracking of exercise repetitions, with the ability to reset for continuous, long lasting use. 3、High Strength Spring: Constructed with robust and thick spring, this hand gripper is built to last, ensuring reliability and longevity without the risk of breakage. 4、Ergonomic Curve Design: The specially designed curve fits snugly against each finger, promoting a comfortable and secure grip while preventing slippage during use. 5、Functions: The forearm strengthener is great for improving strength, power and speed in the wrists, fingers, and forearms. An undoubtedly best choice for rock climbers, tennis players and athletes. Item Type: Hand Grip Strengthener Material: TPR, PP, Steel Package List 1 x Hand Gripper