Wilson Jones W385-54BPP Heavy-Duty D-Ring View Binder, 4 Inch, 8.5 Inch x 11 Inch Sheets, Customizable, Black D-Ring holds up to 40 percent more than standard round rings CleanView material to prevent toner and ink markings No-Gap locking D-rings stay aligned to keep pages from falling out Back mounted ring helps pages lay flat Two interior pockets for extra storage