Thank you for viewing! (^-^) I'm selling this because it's become difficult for me to use due to my age. I apologize, but there was no material tag, so I haven't specified the details (>_<) In terms of size, it's a standard size, about 27cm x 2, which is around 54cm. It has some stretch. *Please note that these measurements are approximate due to being taken by a non-professional, so there may be some slight variations.