2. Jumping ball is suitable for children to play and exercise it is a good helper to exercise. It can play a role in human health. It also has a certain effect on the physical fitness of middle-aged and elderly people. 3. The jump ball can drive the legs abdomen and upper body to exercise together. Promote body metabolism his exercise intensity and effect are better than skipping and running and more fun than skipping and running. Children are easy to persist and it can intensify exercise unknowingly love sports so as to strengthen bones and improve physical fitness. Manufacturered by Voyoo. 4. The jump ball can exercise the whole body improve blood circulation provide sufficient active oxygen for the brain and promote the development of the brain. In addition QQ Xunawu (Dance Fight) requires the cooperation of the left and right feet in order to move. Through the cooperation of the left and right feet the left and right brains are developed simultaneously. With the jump ball you can get the good looks and fitness which is suitable for people who want to lose weight jump and it is suitable for children thus increasing intelligence and happiness. 1. Put your feet in the ring of the jump ball first push the ball to the left and then start jumping.