0-1 month (newborn) – average head circumference 33-36 cm
· 1-3 months - average head circumference 36-39 cm
· 3-6 months - average head circumference 39-43 cm
· 6-18 months - average head circumference 42-48 cm
· 2-4 years - average head circumference 48-51 cm
* In the comment of the order, which can be found in the shopping cart, safely add the specific head circumference of the child