Simply slip your memorabilia and photos into the Catalina's easy-load pockets on each page, and you'll achieve a nice level of design aesthetic with minimum effort. Premium quality 2-up polypropylene was used to craft the ultra clear and sturdy pages, allowing you to insert 4" X 6" photos on both sides (4 per page). Six-ring binding. Comes with 50 sheets (100 pages). As a bonus, we include 5 free scrapbook pages. Refillable. Use Series L Refills.