These non-medical grade ADULT sized masks are very comfortable to wear. One size fits most. *Adult size fits most (approx. 7.25" x 5.25") *Polyester/cotton WITH pocket for filter (INCLUDED) *Ear strings are ADJUSTABLE, stretchable, soft, and comfortable to wear over many hours *Whimsical designs by Liane Fried *Machine and hand washable *Packaged with a gift tag in a protective cellophane sleeve *Designed and hand-printed in my NJ PRICE IS FOR ONE MASK.