Perfect for art and photographs. Featuring a durable polypropylene cover, stylish stitch cover accent and crystal-clear, top loading pocket sheets. Comes supplied with thich gauge black, acid-free mounting paper. These books are completely acid-free and PH-neutral through its polypropylene, PVC-free construction and quality crafted. The Art Profolio Evolution is archival safe for all of your art storage needs. Contains 24 pages for 48 views.