Rhode Island Novelty Red Cardboard Graduation Cap The crepe paper has a small amount of stretch at the edges that allows it to fit most teens and adults Approximately 21&Prime; circumference around inside of hat The square top of the graduation cap is 9 1/4 &Prime; long and wide The graduation cap is made of cardboard, with a crepe paper headpiece, and gold tassel Crepe paper headpiece is 3&Prime; tall