These sparkling butterfly masks are great for costume or masquerade parties. Made of plastic, each mask has an elastic band to hold the mask in place. Size fits most adults. 8"W. Masquerade or costume parties are a great way to entertain. Make sure all your guests can participate in the fun by giving a way a mask as a party favor. Party guests love to be in disguise. Stock up on eye and half masks to make your night a success!