This is a non-woven interfacing. This is a set of 2, including 1 bag of heavy-weight interfacing and 1 bonus bag. ・Heavy-weight type Size: 1m x 2m Material: 70% polyester, 30% rayon Ironing temperature: Medium ・Bonus Size: 1m x 2m Stored in a dark place at home for about a year. Please purchase with the understanding that it has been stored. Purchased from "Tsukuru Tanoshimi" (Enjoy Making).