EasyOpen? locking Slant-D? ring mechanism instantly engages when closed eliminating two-step and two-hand operation. No scratched desks or bookshelves from triggers that don t close up. Opens and closes with just the touch of one finger which earned this binder the Ease-Of-Use Commendation from the Arthritis Foundation. Safer and easier to use than other metal ring binders?no more pinched fingers. Holds 25 percent more than conventional round ring binders. Clear overlay on front cover back cover and spine allows insertion of custom title sheets for a professional looking presentation. Maximum Capacity Range ( ): 2 in; Sheet Capacity: 500; Color(s): White; Binder Sheet Size: 11 x 8 1/2.