Size detail	Approx Age
0	Birth up to 6 weeks
1	6 wks - 3 months
2	3 - 6 months
3	6 - 9 months
4	9 - 12 months

Size detail	Approx Age
5	12 - 18 months
6	1 – 2 years
7	2 – 2.5 years
8	2.5 - 3 years
9	3.5 - 4 years
10	4 – 4.5 years
11	4.5 – 5 years
12	5.5 – 6 years

Size detail	Approx Age
13	6.5 – 7 years
1	7 - 7.5 years
2	7.5 - 8 years
3	8 – 8.5 years