Product details of New Strong Man Hand Grip Gym Grippers Arm Wrist Developer Forearm flexor Muscle Strengthen Exercise Trainer Device Material: Stainness steel,ABS, sponge Size: 24.5*13*2.7cm Color: Black Usege: wrist muscle strengthening Maximum tention: 10kg This hand grip exerciser is made of high quality and durable material This hand grip exerciser is lightweight, easy to carry for active men and women who exercise daily at their home or office Perfect for strength training, flexibility and balance in conjunction with various workout programs Help you to improve the resilience of motion The pull handle can be adjusted by different size of hands and arm Use For: Strength, Sport Training Compact and Portable Adopt high-quality spring steel, anti-rust and not easily deformed. Hand Grip adopts ABS material Very durable. With safe EVA foam design, sweat-absorbent and anti-slide, comfortable to use Compact and lightweight, strengthen your forearm and wrist force anytime, anywhere