Stretchable Book Covers for Adult KidsSuitable for 3-18 Years KidsWhen you carry it in your bag, it prevent the edges of your book from curling,protected from prying eyes looking at what you are reading.You can use your own parenthesis when you stop reading.Made of high quality polyester,which is durable,washable and reusable.Size:9.8 Incx15.7 Inch,suitable for 9x11 Inch books.