The only storage/display book of its kind! Accept no imitations! Completely acid-free through its polypropylene, PVC-free construction and quality crafted, black acid-free mounting paper provided in each page. Archival safe for all your art storage needs. Great for storing photographs and film of all sizes. Top-loading, clear polypropylene sheets will not stick to copier toner and are also ideal for storing a vast array of artwork and memory projects. Store and Display Artwork and Photos in a Wide Array of Portrait, Landscape, Metric and Multi-Page Format Sizes: 100 percent acid-free and archival safe. Durable polypropylene cover. Clear top-loading polypropylene pocket pages. A reversible spine insert; which allows for customized titling and organization. Thick gauge, acid-free black mounting paper. Inner cover pocket (included on most sizes) for quick-access storage. 24 sleeves for 48 views. Note – Product Sizes given are the sizes of the artwork they accommodate, not the actual dimensions of the product. All size formats available in 24 pages count and 8.5″ x 11″ letter size now offered in 6, 12, 24, 36, 48, 60 and 90 pages.