The ProFolio Poster Binder is the largest presentation and storage book created by Profolio. A multi-ring binder mechanism allows for sheets to be moved or added. There is a smooth outer zipper on 3 sides and a reinforced nylon cover for added strength. There is also a double-stitched handle for easy transport. The improved, wider, 24x36 inch pockets are designed to hold posters, artwork, and photographs. Each has an insert of black, acid-neutral paper. The binder comes with 10 pockets for 20 views, and more can be added.