Not certain what size balls to buy...?

 

 Girls

 Recommended Sizes

Under 8 years
Size 0
Aged 8-14 years
Size 1
Aged 14+
Size 2

 

Boys

 Recommended Sizes

Under 8 years
Size 0
Aged 8-12 years
Size 1
Aged 12-16 years
Size 2
Aged 16+
Size 3