I purchased this nylon kotatsu cover. I took it out of the bag intending to use it, but it's unused. It was stored in a bag, so there are some fold marks. I measured the dimensions myself, so there may be some error. For reference, it's 187 x 187 cm, with rounded corners. It's a thin sheet, so it could be used as a base sheet or a cover, and it seems like it could be used for things other than a kotatsu. Please understand that this has been stored at home. Thank you for looking. #KotatsuCover #KotatsuFuton #Sanrio #HeiseiRetro