This is a used condition marching band hat. It has a slot on the top for a plume or feather (which is not included) and it looks like it had had at one time a symbol or emblem on the front (which is also not included). It has a gold colored chain across the top of the brim and a plastic adjustable chin strap. Underneath the brim, it is marked 'STARBURST, IND., MADE IN USA'

As for the size, it's not marked, but it looks like it would fit a child or small adult, it measures about 6 1/2 inches in width (temple to temple) and about 7 1/2 inches from front to back and about 4 7/8 inches tall.