Purchased from Kawashima-ya and stored in a dark place without use. I will be selling it as I don't anticipate using it in the future. The product description and photos are from Kawashima-ya's website. Koji-making Cloth 〈Made of Pylen〉 1 sheet 94cm x 100cm Original price: 5258 yen Please refrain from price negotiations. When sending via Nekopos, I will fold the edge of the cloth slightly to fit it in the box, so please be aware of this. Optimal for koji making. The fine mesh prevents koji mold from escaping. It allows excess moisture to escape, keeping the koji warm in an optimal environment.