Wilson Jones 384 Line Heavy-Duty Locking D-Ring Binder, 2-Inch Capacity, 8.5 x 11 Inch Sheet Size, Dark Blue (W384-44BLPP) Locking D-Ring holds 40% more than standard round rings. No-Gap locking feature keeps pages from falling out. Ink resistant material keeps print from sticking to covers. Made from heavy duty vinyl to resist tearing and cracking over time. Pocket Guard on both inside covers holds loose papers secure in their pockets.