This item is not a toy and does have small parts that could cause a choking hazard. No child should be left alone or unattended with their hat and shpould be removed for activities where it could prove to be a hazard. No child should be left sleeping wearing their hat.

6-24 Months - 18.8" - 19.6" Head Circumference

2-5 Years - 20.4" - 21.2" Head Circumference