If you want to decorate your textbooks, then you must not miss our book cover set. It is not only a practical book protector, but also a book decoration. It can be recorded, whichis a good gift to students and other people in need. Features - Color:As Shown. - Material: Kraft paper. - Size S/22K: Approx. 21 x 15 cm /8.26 x 5.9 inch. - Size M/16K: Approx. 26 x 19 cm /10.23 x 7.48 inch. - Size L/A4: Approx. 30 x 21 cm /11.81 x 8.26 inch. -Three different sizes meet your different needs, whichensure its practicality and popularity. - Suitable for elementary school textbook, high school textbook, tutorial book, etc. - It will protect your books from greasy fingers, dust, pen marks, dirt, and grime. - It can be used to record subjects, classes, names and other information. -Flexible wrapping and adjustable width, suitable for most and other books.