The 4.25″x 6.1″ Pockets Perfect for 4″x 6″ or smaller photos or cards, 2 pockets per page, up to 4 photos with 2 inserted back-to-back, totally can hold up to 120 photos or cards. Heavy Duty: The photo protector pages are made from 10C (0.1mm) thick polypropylene and reinforced at the binding edge.