LED Wrist Ball Trainer Auto-Start Wrist Strengthener Gyroscopic Forearm Exerciser Gyro Ball for Strengthen Arms Muscles Wrist -Blue

The LED wrist power ball with stylish look and a quiet sound is a great gift to reduce your pressure and easy to exercise, it can mainly exercise the muscle groups of fingers, wrists, arms and other parts. Features: Made of high quality Polycarbonate, silicone and alloy steel materials, it’s lightweight and durable. It’s easy to use that use the thumb of both hands to push the movement in the direction of the arrow of the inner ball, started by the internal spring, simple and environmentally friendly. By artificially controlling the rotation speed of the wrist, you can adjust the rotation rhythm of the ball core and the generated force that it will help refine you’re fine motor skills in hand and arm. When the wrist ball rotates quickly, the dazzling light will light up that add fun to your workout. It not only can strengthen fingers, wrists, hands, forearms, shoulders, and bicep etc, but also can be beneficial in promoting co-ordination and blood circulation. It’s small and compact, you can take anywhere such as office, the gym and home etc. Specifications: Please note: Due to manual measurement, there might be a tolerance in the product size. Due to the lighting effects and shooting angles, the color of the item and that shown in the picture might have a nuance.