The Impress series has a durable, lay-flat Wire-O binding. It features a hard cover with a 4.25" x 3.25" die cut window. They are made with high quality binder's board and come in a variety of finishing materials (Click to view...). The interior pages are printed on top quality, 80# Silk paper for richer looking photos with enhanced contrast. They have a outstanding color and a professional smooth appearance. The Impress series is offered in three book sizes.