27.5 INCHES SIZE 5 BALL: The AND1 youth size basketball is size 5 (27. 5”) and weight with easy to palm grip. PLAY ANYWHERE: Our indoor outdoor basketball can be used to play anywhere. DEEP CHANNEL CONSTRUCTION: The AND1 grip basketball has advanced deep channel construction that improves ball grip and control for dribbling and shooting, perfect for youth players. DURABILITY: This rubber basketball is made from high quality rubber material, AND1 basketball street ball is built to last and withstand wear and tear. COMES DEFLATED: Every 27.5 basketball comes deflated. Quickly inflate it using a needle pump. A pump is NOT included.