Champion Sports Rubber Basketballs Best Buy! Champion’s rubber basketballs feature a rugged composition rubber cover with deep pebbled surface for added grip. Nylon wound, 2-ply butyl bladder with heavy duty construction for added durability and air retention. Ideal for outdoor play on asphalt and all-weather conditions. Six bright colors to choose from! Please choose size and color. Features: Composition rubber cover stands up to frequent use on pavement or indoor floors Nylon-wound 2-ply butyl bladder for maximum air retention Heavy-duty construction Please choose size Item # RBB1 (Official ) RBB2 (Junior ) RBB4 (Intermediate )