Size 100 Suitable for 4-5 years old
Size 110 Suitable for 6-7 years old
Size 120 Suitable for 8-9 years old
Size 130 Suitable for 10-11 years old
Size 140 Suitable for 12-13 years old
Size 150 Suitable for 14-15 years old
Size 160 Suitable for 16-17 years old
