Unique overlay design allows a single sheet to create a one-piece custom insert that wraps around spine to front cover. Space saving design, double hinged cover takes up less space on a shelf. Interior front and back cover pockets. Back mounted rings allow pages to lie flat. See quickfitbinders.com for easy to use templates. Locking angled rings. 3'' capacity. PVC free polypropylene material. Black. Also available in a carton of 6.