The Way to Celebrate Adult Unisex Halloween Jabber Jaw Clown Mask Costume Accessory is a creepily realistic mask with a moving jaw, so get ready to be the scariest among the crowd. Well, if there's any crowd left after they see you! No one wants to stick around when frightful, masked clowns are on the loose, especially when the mask has mouth movement! It includes an elastic strap and a foam square at the forehead for the wearer's comfort. One size fits most adults. Perfect for Halloween or any costume event!