Wilson Jones 86610 Ultra Duty D-Ring View Binder w/Extra-Durable Hinge, 1" Cap, White Single-Touch ring trigger opens with a simple touch of a finger EasySpine insert sleeve keeps spine from ripping or folding Locking D-Ring holds up to 40 percent more than standard round rings No-Gap locking feature keeps pages from falling out CleanView material to prevent toner and ink markings