Inner lining The front side is made of fabric, and the back side is made of bleached cotton. 6 pieces With mask elastic, the elastic will be threaded and tied before shipping. Limited price, first-come, first-served. Please refer to the photos for the size. It can be used as is, placed directly on a mask, or with the elastic threaded through. For washing at home, please hand wash or wash in a laundry net. A dryer is strictly prohibited as it will damage the fabric! Shipping will be in an envelope via Yu-Packet Post Mini. The price includes shipping. This is a handmade item made by an amateur, so there may be uneven stitching or slight distortions. If you are concerned about this, please refrain from purchasing. If you are not concerned, thank you for your consideration.