blue and white butterfly pattern face masks Demon Slayer pattern Reusable, Washable and Breathable face mask made with polyester outside and comfortable cotton inside -Face masks without elastic strap: 5.1’ x 5.9’ - PROTECTION: 2-layers defense system that is made from breathable fabric. * Face masks are NOT intended to treat, or cure disease or health condition. We accept NO RETURNS due to hygienic regulations. face mask, shinobu kocho demon slayer