Wrist ball is the abbreviation of wrist fitness ball, also known as power ball, magic ball, gyro ball and super gyro. It was invented in Taiwan Province Province, popular in Taiwan Province Province, and then spread to Europe and America, and gradually spread to all parts of the world.
Wrist power ball is the fastest artificial power device in the world. It is purely mechanical, without batteries and any power supply, and without electromagnetic radiation. The rotation of the wrist drives the ball core to rotate at high speed, thus generating powerful power.