Basketball topic

A basketball is an inflated spherical ball used in the game of basketball and its variations. Basketballs typically range in size from very small promotional items possibly 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. 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,... full article at wikipedia