The QuickFit PRO binder features a single touch Pin-Lock gap free locking D-ring making it easy to open, close, and load paper, while keeping your documents secure. Utilizing the unique QuickFit overlay design allows you to use a single sheet of paper to create a custom insert that wraps around the spine to the front cover for easy insertion and quick identification. A second 8.5″x 11″ sheet can customize the entire front cover. The space saving, double-hinged cover takes up less space on a shelf. Ink transfer resistant, clear overlay and interior front and back cover pockets. Constructed from commercial grade heavy-duty polypropylene material for frequent reference and longevity.