Our high quality masks are made of a thick premium felt with a black elastic band sewn to each side of the back. Size: The masks are one size fits most from kids to small adults. What you get: 12 PCS Masks Set= 12 Pieces different variety Masks (One Of Each design) Material: Masks are made from felt. Our Masks are great for birthday parties gifts, party favors, party decoration, taking pictures and dressing up. Thanks for visiting!