Effective training and rehabilitation for arms and wrists. Improves grip strength and increases blood circulation. Relieves mouse arm and rehabilitates sports injuries. Compact and lightweight design for easy use. The gyroscopic powerball is a fantastic tool for strengthening wrists, arms, and fingers. Inside the ball is a gyro spinner that is activated by your hand movements. When you move your hand in the opposite direction, a natural resistance is created that effectively trains and strengthens the muscles. This makes it perfect for both training and rehabilitation. The gyro ball helps relieve pain from mouse arm, improve grip strength, increase blood circulation, and strengthen ligaments. Its compact and lightweight design makes it easy to use and take with you, whether you are at home, in the office, or on the go. Practical training for all levels. The gyro ball is suitable for both beginners and experienced users who want to strengthen wrists and arms or recover from injuries. Perfect for daily training and as a tool to prevent future problems. Specification - Size: 70 x 70 x 50 mm - Weight: 270 g - Color: Black - Function: Training and rehabilitation of wrists, fingers, and arms