Get in the game with the official size Champion Sports Cordley Composite Basketball that meets High School & NCAA specifications. This ball features a long-lasting Cordley® composite cover and an airtight 2-ply butyl bladder so that you'll spend more time out on the court and less time fiddling with the air pump. · Cordley® composite cover · 2-Ply butyl bladder · Meets high school & NCAA specifications · Official size · Size: 29.5"-30"