Characteristics: - Suitable for everyone : The forearm strengthening grip is ideal for improving strength, power and speed in the wrists, fingers and forearms. Undoubtedly the best choice for climbers, tennis players, athletes and musicians to increase the flexibility of the fingers and wrists. - Comfortable : The ergonomic and soft grip of the hand amp is not only suitable for small and large hands, seniors and teenagers, but also provides a comfortable hold. - Injury Rehabilitation : Using this grip strength trainer for daily training is beneficial for hand injury, rheumatoid arthritis, arthritis, carpal tunnel, tendovaginitis, fracture, wrist fracture and tendon surgery. - Portable : with a container bag, convenient to store and easy to carry. Technical data: Black colour Material: Plastic silicone alloy Package: 1 x Grip Amplifier 1 x Finger Exerciser 1 x two-way toe stretcher 1 x ball egg 1 x hedgehog massage ball 1 x Handpiece counting amplifier 1 x bag