33 LIBERTRIA RUBBER BASKETBALL IN SIZE 6 Excellent quality highly durable rubber basketball, designed to represent the 33 urban game. Perfect training and drill ball. Patented 12 panel Giugiaro design. Nylon wound butyl bladder. Official size and weight. Suitable for indoor and outdoor play. *Inflation: All balls have the correct pressure printed around the valve. Correct ball inflation is important to maintain a technically superior product. Note: Over-inflation will damage the ball. When inflating the ball with a pump it is critical that the needle is lubricated before insertion.