Pioneer Memory Book, 12" x 12" E-Z Load Scrapbook with 10 Archival Pages & Inserts. Three popular sizes, each initially contains 20 pages: 10 Top Loading sheet protectors and 10 heavy white paper scrapbook inserts Archival quality paper and plastic: Acid, Lignin and PVC free Inserts easily slide out of post-bound seamless sheet protectors Digital or conventional images can be transferred by printer or copier to inserts Screw post binding system accepts unlimited refills