The Champion Sports Intermediate Rubber Basketball is a good choice for junior players and is also the official size for women's high school, college and pro basketball. Built with a composition rubber cover, this intermediate basketball has a heavy duty construction that will stand up to regular use on indoor or outdoor courts. The nylon 2-ply butyl bladder offers exceptional air retention, so you can spend more time playing and less time inflating the ball. *Composition rubber cover *Nylon wound 2-ply butyl bladder for maximum air retention *Heavy-duty construction *Intermediate size 6 and weight *Diameter: 28.5" *Orange.