Wilson Jones 876 Line Premium Single Touch Locking D-Ring Binder, 1" Capacity, 8.5" x 11" Sheet Size, Black (W87600) Single-Touch ring trigger opens with a simple touch of a finger. No-Gap locking feature keeps pages from falling out. Locking D-Ring holds 40% more than standard round rings. Pocket Guard inside both covers holds loose papers in place Toughest vinyl material prevents tearing and cracking on covers