This is a baby bonnet purchased from a handmade artist! The third photo is of my baby wearing it at 5 days old. When I tried it on my one-and-a-half-year-old, it technically fits, but it's a tight fit. I think it would be perfect for around one year old and under. Recommended for children with a Nishimatsuya hat size of 50 or smaller. Thank you for looking.