Regulation size and weight rubber basketball. Playful and patriotic Red White and Blue colors. Made from Top Grade Rubber with yarn winding for extra durability. Perfect for your school or home court!. Circumference: 29.5 - 30.0 . Weight: 19.9 - 21.8 oz/564.16 - 618.0 g. Cover: Top Grade Rubber. Bladder: Butyl. Color: Purple/White.