New Design Official Size Rubber Basketball

الوصف

A basketball is a spherical inflated ball used in a game of basketball. Basketballs typically range in size from very small promotional items only a few inches in diameter to extra large balls nearly a foot in diameter used in training exercises to increase the skill of players. The standard size of a basketball in the NBA is 9.5 to 9.*5 inches (*4.1 to *5.0 cm) in diameter.[1]
Nearly all basketballs have an inflatable inner rubber bladder, generally wrapped in layers of fiber and then covered with a tacky surface made either from leather (traditional), rubber, or a synthetic composite. As in most inflatable balls, there is a small opening that allows the pressure to be increased or decreased.