The gym should carry out a series of sports activities, so the floor of the gym should choose a floor material with certain elasticity and high anti-slip performance to ensure the safety of bodybuilders.

In our country, some people exercise their fingers with wooden balls, stone balls and walnut balls for a long time. Later, some rich and powerful nobles developed them into glass balls and jade balls, and gradually evolved into solid iron balls. These balls with different materials and playing with fingers gradually formed the early fitness balls in China.