Thank you for viewing my items from among so many wonderful products! This is a Simmons single-size box spring sheet purchased with a Simmons bed. Single size, please refer to the photos of the tags for the size. There are two brand new, unopened ivory and light blue box spring sheets each, and two used ones each. I did not sleep directly on the sheets, and I only used them for a short period of time with the bed. (I vacuumed the floor right before taking the photos.) (By the way, the almost-unused Simmons single bed has already been sold on Mercari!) The used sheets have been washed, but they are wrinkled because I haven't ironed them. They are clean because I didn't sleep directly on them, but they are large items, and I am a private seller, so please refrain from purchasing if you are overly concerned about details. I would be happy if they could go to someone's home! Size: Single size I am also selling a single-size luxury bed pad (1 piece)! If you purchase them together, I will discount the shipping cost, so please feel free to contact me. Also, if you only want a set of two ivory sheets or a set of two light blue sheets, please comment. (A set of two sheets is 5999 yen.) I am quite a clean freak, so I pay attention to hygiene, but they are stored in a private person's chest of drawers. This is just my personal opinion, so please refrain from purchasing if you are overly concerned. Also, I am sorry it's long, but please read my profile as well. Thank you very much.