What is basketball like?

Basketball is a round body, and the outer skin is generally made of leather, rubber or synthetic materials, weighing about 600 to 650 grams and having a circumference of 75 to 78 centimeters. Basketball can be divided into no.7 ball, no.6 ball, no.5 ball and no.3 ball by model. No.7 ball weighs 600-650g and has a circumference of 75-76cm? ; The weight of No.6 ball is 5 10-550g, and the circumference is 70-71cm; The weight of the 5th ball is 470-500g, and the circumference is 69-71cm; No.3 ball weighs 300-340g and has a circumference of 56-57cm.

Among them, the No.7 ball is the standard ball of men's competition, and the No.6 ball is the standard ball of women's competition.

Supplement-Basketball Structure Diagram:

Inner container: the innermost layer of basketball, made of black rubber;

Wire winding: a protective layer evenly wound on the surface of the ball liner;

Intermediate bladder: rubber supporting structure between bladder and epidermis;

Epidermis: divided into three categories: genuine leather, rubber and synthetic leather;

Ball mouth: the passage for inflating basketball.