The Corrent Clear Polypropylene Report Covers can be used as report covers or to separate and identify other important information in your files or on your desktop. For use with 8-1/2 x 11 materials, these economy weight covers are clear polypropylene. Black Binding Bars (backbones) slide on to report covers easily to securely hold materials. 1/8-inch bar holds up to 20 sheets. Includes Custom Advantage Black and Chrome Retractable Pen.