Thank you for looking. ☆This was made for Shinsyo-ban size books, but 　Shinsyo-ban books come in various sizes. 　Please be sure to check the size of your book 　before purchasing. 　Cannot be used for books that are 182mm tall. ★For 115mm wide books, the adjustment part is short, 　so please refrain from purchasing as it may be unstable. Outer fabric: Cotton sheeting (with fusible interfacing) Lining fabric: Cotton I make these as a hobby when I find fabrics I like. Please refrain from purchasing if you are concerned about unevenness or other small details, or if you are looking for perfection.