The ball movement comes with spring starting device, no power supply, no rope. Gently press the inside ball with both thumbs and wrap it completely in the direction of the arrow. You can easily start pitching by rotating your wrist with one hand. The speed of wrist movement is different, resulting in different training forces, increasing the fun of exercise. Wrist ball training can improve blood circulation, increase the strength of the fingers, wrists, palms, forearms, biceps, triceps and ligaments, shoulders, and restore muscle strength. Moderate size and weight, easy to carry around, whether it is the office, gym, home or travel, you can easily exercise at any time to reduce stress.
CPN-555420977