photo albums: 3-up slide-in 4"x6" pocket refill pages for your 3 ring binder albums Your prints slide-in from the sides of the pockets for easy album assemply. Each pack contains a total of 5 pages 10 fronts and backs with acid-free paper separating the photos in the pocket. Each package will display 30 photos. Sold in 2-packs only to save you shipping . 100 acid and ligne free for archival safety of your precious photos. Overall size of refill page is approximately 6-11/16" x 13". Produced and packaged by the Pioneer® company certifying their quality. 023602012318 - RST-6/STC504.NB