According to US Baby experts:
US Baby pacifiers are designed according to babies’ growth stages. Please select an appropriate pacifier according to the stage of your baby’s growth:
|
Type |
Aperture |
Age |
|
S (newborn ) |
Small round hole |
0-2 months old |
|
M |
Cross hole/medium round hole |
Applicable for babies more than 2 months with strong sucking ability |
|
L (for flour) |
Large cross hole/large round hole |
Over 6 months old, used when supplementary food is added |
