Gyro is a kind of folk sports activity in China, which integrates entertainment and fitness. It can exercise human coordination and wrist strength, and cultivate keen observation. Covering a small area, you can exercise anytime and anywhere, suitable for all ages. Common gyro events include: gyro straight race, gyro spin race, gyro impact and shedding show. In a gyro competition in Guiyang, the largest gyro exceeded 100 kg, and it took more than ten people to whip it in turn to rotate. The smallest gyro is shaped like a small pencil head and weighs only1.5g..