Locking rings of EasyOpen Clearvue Slant D-Ring Binder open and close with one touch, 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, Binder received the ""Ease-of-Use"" Commendation from the Arthritis Foundation, Binder holds 25 percent more sheets than standard round-ring binders, Clear overlay on front, back and spine holds custom title sheets, Design also includes horizontal inside pockets and a flat poly sheet lifter, SKU: SPRCH19654