Hanging View Binder With DublLock Round RingsHanging view binder is a snap to store. Hooks pull out to hang and retract when not needed. Fits most standard file drawer racks or mobile units. Insert customized material into non-glare, clear overlay pockets on binder front, back, spine. DublLock® round ring mechanism locks sheets in so they won't fall out. Two inside pockets for additional storage. Capacity Range [Min]: 0"; Capacity Range [Max]: 1"; Sheet Capacity: 175; Color(s): White.