Wrist Power Gyroscopic Ball, Auto-Start Power Wrist Ball, Portable Forearm Trainer and Grip Strengthener for Strength, Recovery and Stress Relief, Strengthen Arms, Fingers, Wrist Bones and Muscles D

Once the wrist power ball rotating ,it keeps going as long as you keep your wrist moving until you let it stop , no need to worry about it will stop when you exercise. You only need to push the core in the direction of the arrow, start by the internal spring, no rope,small and lightweight, easy to take, exercise anytime, anywhere.nbsp;nbsp;This new wrist ball is Auto-Start Style,without pull string. • 【Proper Size】With dimensions of approximately 2.76 x 2.17 inches (70 x 55 mm), these gyro ball exercisers are designed to enhance strength and improve grip, catering to various needs for hand and wrist muscle development. • 【Good for Health】Our gyroscope ball can effectively increases strength in fingers, wrists, hands, forearms etc, and also be beneficial in promoting co-ordination and blood circulation. • 【Easy to Use】Featuring an automatic start function, simply push the core of the gyro ball in the direction of the arrow, and it will begin to rotate effortlessly, providing a hassle-free experience. • 【New Design】Our forearm strengthener adopts the novel design of LED lights. Cool LED lights inside will light up while spinning, no battery needed, powered by rotating the wrist. • 【Suitable for Sports Training】Hand grip exerciser strengthener for golf, tennis, climbing, cycling, basketball, cricket, martial arts and with improved playing performance for pianists, drummers guitarists.