This 10-pack of portrait size, 16 x 20" ProFolio PolyGlass Pages from Itoya features crystal clear, archival safe sheets that fit all standard multi-ring binders and hold your images. The sheets have a thick gauge acid-free mounting board inside each one. The crystal clarity and texture-free surface ensure your images shine through like you're looking through glass. These pages are suitable for photographs, digital images, and artwork. They will not stick to inkjet, laser, or copier toner.