Thank you for viewing! Outer fabric: Japanese-made 100% cotton sheeting Lining: White double gauze with antibacterial and deodorant treatment Size: 13 cm long, 10 cm wide when folded in half. Standard adult size. Soft mask elastic is used, making it less likely to hurt your ears. All the masks I make have the elastic sewn on, but if you are concerned about the length of the elastic, you can also have the elastic threaded through the mask without tying it, and adjust and tie it yourself. Please let me know in the comments. Please note that this product is not specifically designed for virus protection. When washing, gently hand wash with a neutral detergent for clothing, shape it, and hang it to dry in the shade. When ironing, be careful not to touch the mask elastic. The elastic may shrink. Ironing at high temperatures has a disinfecting effect. Each piece is carefully finished, but please understand that it is not as perfect as a ready-made product, and the pattern may appear differently from the photos due to the cutting. This is the price for a set of two. Immediate purchase is welcome. Thank you. We have started a bulk purchase discount. We will give you a 50 yen discount for each item when you purchase two or more items. We will create a dedicated page, so please let us know which products you would like in the comments. However, please note that it may take some time to ship if you purchase a large number of items. Thank you.