Protect Your Books -- Our book protection bags can provide full protection for your books, ensuring that your books are not easy to fall out while carrying. The corners of the bag are reinforced to prevent the corners of your books from being damaged due to collision Convenient Snap Closure-- This convenient snap closure design makes it easy to put books in and take them out, while ensuring the safety of books during carrying. No need for complicated operation, just one click to open and close Waterproof and Durable -- The exterior is made of high-quality polyester material that also withstand rubbing and scratching from daily use. The inner lining is made of soft cloth to avoid damage to your book Size Information -- This book sleeve is measured approximately 11.8x9inches/30x23cm, fits most self published books, standard paperbacks, mass paperbacks, and regular hardcovers Multifunctionality -- In addition to basic book protection, our book protector is designed with extra pockets on the front for storing sticky notes, pens, and other small items to make studying more convenient