Book Sox are stretchable textbook protection covers that go on easily and come off residue-free at the end of the semester. Lightweight yet durable plus they re washable and reusable! Protect Your Expensive Books in Seconds Book Sox unique design lets you install the cover in a few easy steps. The flexible fabric slides easily over the cover and secures itself tightly to your textbook. No tools cutting or taping required! Spice Up Your Textbooks! These emoticons will make you smile. Our high quality fabrics along with our exciting new designs are sure to infuse some fun and variety into your textbooks while helping to protect and prolong their lives! Perfect for textbooks novels dictionaries encyclopedias and more. Book Sox are all 100% machine washable and reusable. These JUMBO-sized textbook covers are made to fit most large thick textbooks. These will fit books up to 9 x 11 x 1.75 (23cm x 28cm x 4.5cm).