These are handmade masks. I made them during the COVID-19 pandemic, and they have been stored individually in bags. These are leftovers from when I was selling them, so some may have residue from sticker removal. These are from a few years ago, so please only purchase if you understand this. The fabrics used are double gauze, muslin, and cotton. Size: Height 8.5 cm x Width 11 cm 1.5m of mask string is included, so you can use it to adjust the size or as a replacement.