Description: The Hand Strengthener allows you to do a leisure-time workout at home or in the office. Features: 1. Perfect strength trainer for hands, fingers, and wrists. 2. Widely used for fitness enthusiasts, golfers, tennis players, baseball players, musicians, and mountaineers. 3. Designed with a counter at the bottom for you to understand the training progress and results. 4. Ideal for enhancing strength and flexibility in the forearm, wrist, finger, hand, and muscle exercises. Specifications: Product Name: Grip Strength Trainer Material: ABS / PVC Power supply mode: 1 piece of LR44 button battery ( not included ) Product size: about 140*108*32mm Grip Strength: about 10kg Three Modes: Timing mode / calorie mode / accumulation mode color:blue+black Packing List: 1* Hand Grip Strengthener Notes: 1. Due to the lighting effects and shooting angles, there is a color difference in the product, please understand. 2. Due to manual measurement, there is a tolerance in the product size.