Hobbymaster Postcard Collecting Binder Page Assortment, 25 Clear Plastic Pocket Pages fit Any 3 Ring Binder Organize, display and protect your postcard collection Fits any 3 ring binder (binder not included) Includes 3 different assorted pages to hold most post card sizes Archival safe: no acid, vinyl or PVC, U-V barrier added Holds up to 160 postcards