• Champion Sports. • Rubber Cover. • 2-ply butyl bladder. • Outdoor use. • Size 5 (27.5) - Junior - Ages 9-11. • Size 6 (28.5) - Intermediate-Boys ages 12-14 Girls ages 12 and up. • Size 7 (29.5) - Official -Ages 15 and up Get in the game with this junior size Pro Rubber Basketball featuring a composition rubber cover nylon wound 2-ply butyl bladder and heavy-duty construction that makes for an excellent rubber basketball with superior air retention. Note: Ball graphics may vary.