I bought this crown because I wanted it for my three year old, who has a pretty big head, and was concerned about the adult ones being too big for him and the toddler ones being too small for him. This one was perfect. It is adjustable on the inside by velcro, and a bit stretchable by an elastic band. So it fits him perfectly without worrying about his big head outgrowing it too quickly. Plus, it says "king for a day" which makes it a lot easier for him to wear it in public without me getting funny looks from people because they all just assume it's his birthday or something, lol!