3 Power Mode: Uncharged Material: Rubber See more Complete Finger Exerciser & Hand Strengthener Package: adjustable forearm gripper (10-132 lbs), 3 levels of finger stretcher (13 lbs, 17 lbs, 21 lbs), finger exerciser (4 lbs), squeeze ball and hand strength ring. Alternating the use of these items can fully exercise the strength and flexibility of the fingers, hands, and forearms. Ergonomic Design for All Hands: Our adjustable finger exerciser and hand strengthener is not only suitable for different hand sizes (men and women), but also suitable for various resistance workout levels (seniors, fitness enthusiasts, and hand therapy). Made of high-quality silicone material, our grip strength training set is comfortable and non-slip. Fitness & Sport Enthusiasts : Strengthen your wrists, improve finger dexterity, and increase hand strength while reducing fatigue with this grip strength trainer. Perfect gifts for athletes, musicians, rock climbers, weightlifters, martial artists, and individuals recovering from hand injuries or surgery.

3 Applicable People: Adult Color: Black Power Mode: Uncharged Battery Properties: Without Battery Major Material: Iron,PVC,Foam