IMPROVES – Your basketball shooting range, dribbling, and passing skills HELPS - Increase strength, muscle memory, and ball handing efficiency IDEAL – For any level of indoor or outdoor basketball training DURABLE – This basketballs rubber cover was designed to withstand years of dribbling and shooting practice AVAILABLE- In Official Size (29. 5”, 40-44 oz. ) and Intermediate Size (28. 5”, 36-40 oz. )