Locking round ring on the binder opens and closes with one finger. Locking mechanism engages instantly when closed, eliminating two-handed, two-step operation. Delayed tension means closing rings will not clamp down and pinch fingers if they get in the way. Once fully closed, the rings lock, and the tension engages to secure your papers. Covers have a crystal clear overlay on the front, back, and spine. Design also has horizontal pockets on inside front and back covers. Binder received "Ease-of-Use" Commendation from the Arthritis Foundation.