Thank you for viewing. This is an additive-free sheet (bed sheet) made of 100% cotton, housed in a wooden box. Made in Japan. [From the product description] All materials are 100% cotton. In order to whiten the fabric, we have reviewed the conventional processing methods that consumed various chemicals, vast amounts of energy, and water. This bed sheet is processed using hydrogen bleaching, which is designated as an eco-friendly product. Additive-free product. Size: 150cm x 250cm Although it is new and unused, please understand that it has been stored at home.