The Case-it D-145 Large Capacity Zipper Binder is an efficiently-designed 3-ring organizer with a five-color, tabbed expanding file folder. This large-capacity binder also features a gusseted zipper for easy access plus a carry handle and shoulder strap for versatile mobility. The zipper has a unique angled design to make it easier and quicker to zip things up when packed with your important papers and materials. The D-145, like all of Case-it?s binders, uses Kraft board instead of PE board to g