(1) 10" x 20 Yard Roll Archival Quality Just-a-Fold III Book Jacket Covers - Allows you to cut to Your Specifications Super Clear allows DJ Brilliance to show through and Prevents books from sticking together on the shelves pH neutral PVA Adhesive and Chemically stable 1.5 mil thickness polyester rolls Bottom Loading - Allows flexibility with different size book jackets. Can be folded several inches smaller than stated size Non-printed paper backing with perforated folding lines for ease in fitting and added protection This is Brodarts BEST quality Book Jacket Cover in a convenient small Roll. The Roll allows you to cut your Dust Jacket Cover length to YOUR Specifications. The bottom loading sheets can be folded to fit books up to several inches smaller than the stated size and still have the protection of the paper backing covering the entire dust jacket. Archival Quality is safe for use on ANY book. There is no ink on the paper backing to possibly bleed through to your DJ. Easy to use instructions are included.