The most popular club match ball in the world The Mitre ® Ultragrip Netball has excellent durability and grip. Size 5 is recommended for players 11 years and over.Plays beautifully on all surfaces and in all conditions.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.