6 PACK Book Cover Sox Stretchable Durable Reusable Universal Size Fit for School or Textbook Hardback Books. Colour Book Covers UNIVERSAL FIT our school and textbook book cover sox will fit any paperback or hardback books up to 9" x 12" to protect from accidental damage and keep wear and tear to a minimum EASY TO USE just slide the stretchy book cover sox over any book thick or thin to give it an instant new look and feel. Get these book covers today! STRETCHABLE QUALITY FABRIC stretchable hard-wearing material lets you change school or textbook book covers in just seconds for fast and effective protection 6 PACK in THREE COLORS 3 medium and 3 large book cover sox let you jazz up old or boring book covers in a flash and even come with their own built-in bookmarks REUSABLE & DURABLE tough stretchy fabric can be used over and over again or quickly swapped from book to book. Add to Cart and BUY NOW!