Inner lining The front side is made of fabric, and the back side is made of "sarashi" (bleached cotton cloth). 6 pieces With mask elastic, which will be threaded and tied before shipping. Limited price, first come, first served. Final price reduction from 1500 yen to 999 yen. Please refer to the photos for the size. It is designed to 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. The use of a dryer is strictly prohibited as it will damage the fabric! Shipping will be done 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 imperfections. If you are concerned about this, please refrain from purchasing. If you are not concerned, please consider purchasing.