I purchased this online several years ago. I've forgotten which site I bought it from... I believe it was probably Mercari or Yahoo Auctions. I've worn them with care, so I don't think there are any major stains. The size is 27.5 cm, but because the width is slim, someone who usually wears a 26.5 cm size should be able to wear them comfortably. There is no box. Please feel free to ask if you have any questions!