Basketball is divided into 7, 6, 5, 4 and 3 different models according to the models. Different models and sizes are also very different. Basketball of different sizes is suitable for different people, so you should choose the right basketball according to your own situation.

No.7 basketball

The standard ball for men's competition weighs 600-650g, with a circumference of 75-76cm and a diameter of 24.6cm..

No.6 basketball

The standard ball weight of women's competition is 5 10-550g, the circumference is 70-7 1cm and the diameter is 22.6cm.

No.5 basketball

Youth ball, weighing 470-500g, with a circumference of 69-7 1cm and a diameter of 22.0cm.

No.4 basketball

Children's game ball, weighing 400-450g, with a circumference of 62-64㎝ and a diameter of 20.0cm

No.3 basketball

Children's game ball, weight 300-340g, circumference 56-57cm, diameter 18. 1cm.

The benefits of primary school students playing basketball

Basketball, as a sport, is also widely developed among primary school students. Playing basketball for primary school students has many advantages, such as exercising, strengthening physical fitness and cultivating teamwork spirit.

Playing basketball also helps to cultivate primary school students' self-confidence and sense of competition, making them more healthy, confident, brave and United on the road of growth. Exercise to enhance physical fitness Playing basketball requires constant running, jumping, throwing and other actions, which can exercise the muscles, ligaments, bones and other body parts of primary school students and improve their coordination ability and reaction speed.

Playing basketball can also enhance the cardiopulmonary function of primary school students, improve their endurance and make them healthier and stronger. Cultivating team spirit Basketball is a team sport, which requires mutual cooperation and cooperation among players.

By playing basketball, primary school students can learn how to cooperate with others, how to communicate and negotiate with teammates, and how to unite as one to achieve their goals together. These qualities will play an important role in their future study and life. Cultivate self-confidence and competitive awareness. In the process of playing basketball, primary school students can experience the joy of success and the frustration of failure.