Wilson Jones 1 Inch 3 Ring Binder, Heavy Duty View Binder, D-Ring, Extra Durable Hinge, White (W385-14WPP) 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