This is an ISUKA silk sheet. The shape is rectangular. This is a silk sheet that has only been tried. What I am selling is the silk sheet in the image and the original storage bag. The following is product information: ¥9,900. This sheet is made of supple, soft-to-the-touch 100% silk material, making it comfortable, lightweight, and compact. It's a great item for sleeping in huts or when traveling. Average weight: 130g Size: 85 (shoulder width) x 185 (total length) cm Storage size: φ7 x 12cm