Comfortable Material Face Mask: This dust mask is made of skin friendly fiber material which is breathable and comfortable to wear. Size: 29 x 12 cm / 11 x 4.7 inches.Washable Mouth Masks: these dust-proof black masks are washable, can be repeatedly used without being colour faded or deformation, very cost effective set of face masks that everyone should have a set in case of need.Unisex Blue Mask: these black dust masks are suitable for both adult teens children men women. Lightweight and Foldable Masks: very convenient to carry the face masks with you for their light weigh and foldability, you can put the mask inside your pocket and bring it anywhere. Elastic ear strap design, easy to wear.Please note this is not a medical mask