The shot put itself is also exquisite. In addition to the weight difference, athletes can also choose different diameters of shot put according to the size of their hands. In the official competition, the weight of men's shot put is 7.26kg (diameter1~13 cm) and that of women's shot put is 4kg (diameter 9.5 ~ 1 1cm). In addition, according to different youth groups, there are 6 kg (young men under 20 years old), 5 kg (young men under 0/8 years old) and 3 kg (young women under 0/8 years old). Shot put is one of the track and field events. The athlete holds the shot put and pushes the ball from his shoulder with one hand in the form of sliding step in the throwing circle, which is effective when it falls within the specified area.