Lightly padded coated paper album cover features square corners and deluxe expanding spine. Reinforced screw post binding allow pages to lay flat. Included with each album is a clear album cover and ten top loading page protectors with white inserts to be used as pages or can be interchanged for colored cardstock to create colored backgrounds (use white inserts for cardstock sheets). Archival safe Photo safe acid-free and lignin free. Additional refills are available: 4046.