Specification: Size: Adjustable Handle: 11 * 15 * 2cm Adjustable Finger Force: 9 * 7.5 * 2.2cm Five-Finger Circle: 7 * 7 * 3.8 cm Egg ball handle: 5.8 * 4.1 cm Bump finger force circle: 6.8cm Color: Black Material: PP, TPR, ABS, silicone, TPE, Package contents: Adjustable handle * 1 Adjustable finger strength * 1 Five-finger circle * 1 Egg ball handle * 1 Bump finger strength circle * 1 Suitable for everyone The grip trainer wrist training set is perfect for improving strength, performance and speed in the wrists, fingers and forearms. Undoubtedly a best choice for climbers, tennis players, athletes and musicians to improve the flexibility of the fingers and wrists Suitable for young people, but also ensures comfortable holding. The resistance of the hand grip enhancer is perfect for both men and women with different strengths. Injury Rehabilitation Daily use of this grip strength trainer is beneficial for recovery from hand injuries, rheumatoid arthritis, arthritis, carpal tunnel, tendovaginitis, fractures, broken wrists and tendon operations. Handgrip forearm grip exercise set The handgrip reinforcement kit contains an adjustable handgrip booster, a finger exercise device, a finger stretcher resistance band, a grip ring and a stress release grip ball that you can use to hold your hand, your fingers, your wrist , Be able to strengthen and exercise your elbows and forearms. Safe, Non-Toxic, Durable Made of high quality, soft silicone to ensure an optimal workout. Perfect for those who train fingers, wrists and wrists and want to reduce stress. Pleasant to the touch, suitable for squeezing, massaging and toning muscles.