Become the ultimate crossover artist with Wilson's NCAA Killer Crossover basketball. It's durable Optima rubber cover makers it the ideal weapon-of-choice for street ballers, and it's super-wide channels increase grip and control so that no move is off-limits. Take your game outside and get ready to break ankles and break records with the Killer Crossover.OFFICIAL SIZE: This 29.5" basketball is ideal for boys age 14 and up.STREET PERFORMANCE: A durable rubber covers means you can play indoors or outdoors, but it's ideal for street ball.SUPERIOR GRIP: Super-wide channels make this ball easire to grip and control so you can make every move on the court.NCAA BRANDED: Wilson is the official basketball of NCAA March Madness.