The doll jumping bar, also called doll jumping, is composed of an ordinary iron bar, supplemented by handrails, vertical pipes, spring sleeves, pedals and springs. Introduction to the principle of doll jumping: doll jumping is a kind of deformed and curved jumping device, which is mainly controlled by springs. So it moves in the form of vertical ground motion. According to the functional principle of elevator.

The benefits of doll jumping:

1, the doll jump can exercise the jumping ability very well, and the jumping ability is a comprehensive embodiment of the whole body strength, running speed, reaction speed, body coordination, flexibility and flexibility.

2, doll jumping can also exercise cardiopulmonary function and increase vital capacity.

3. Doll aerobics has many functions, such as promoting blood circulation, increasing height, losing weight, keeping fit, improving intelligence and eliminating hemorrhoids.

4, adults jump dolls, which is good for adults to coordinate their bodies in an all-round way.

Experts remind parents and friends that it is best to play vault on flat land. For the sake of safety, you should take some protective measures for your arm, because once you fall, your arm is more likely to get hurt.