1. Optimized Pressure Distribution Enhances finger strength with an independent design that balances pressure, improves grip stability, and conforms to hand curves for an uninterrupted training experience. 2. Enhanced Grip Comfort High-elastic silicone provides a soft and comfortable feel while offering flexible rebound support and a non-slip texture that maintains its shape. 3. Versatile Muscle Support Features adjustable pressure options to improve joint flexibility and relieve muscle tension, ideal for various training and recovery purposes. 4. Widely Applicable A lightweight and portable grip strength trainer promotes outdoor use and systematic strength improvement with its compact design, suitable for home, studio, and gym environments. 5. User-Friendly Design With a carefully calibrated scientific weight range, the grip strength trainer prioritizes high safety and assists in restoring joint mobility. Material: ABS Color: As shown in the figure Product size: 12*10*6 cm / 4.72*3.94*2.36" Package list: Five finger gripper*1