The Mitre ® Shooter Netball is durable match ball the classic choice of many clubs and schools. Size 4 is recommended for players 11 years and under.Play on any surface.Inflate with standard pump (not supplied)Product Care: Check PSI before each use. Avoid rough surfaces. Do not sit on balls. Rotate balls in your kit to ensure even usage. Inflation: Pull into shape moisten needle inflate to recommended PSI.