Features: 1. High-quality material: The electronic counting grip is made of high-quality material, not easy to break, reusable, durable. 2. Comfortable handle: The handheld heavy duty grip is equipped with an ergonomic non-slip handle, which fits perfectly in the palm of your hand and provides you with a comfortable grip. 3. Smart counting: Our grip trainers is designed with a smart digital counting function, which will record your exerciser number every time. 4. Adjustable-Resistance Forearm Grip: The grip is designed to be adjusted from 10-220 lbs, the hand-grip enhancer effectively improves the flexibility of fingers, wrist and forearm by increasing or decreasing tension. 5. Lightweight and portable: very suitable for home, home, dormitory, office, gym, etc. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Material: PP, TPR, spring Size: 17*12.6*2.6cm Package List: 1 x Smart Counting Grip