DublLock rings won't spill documents - even if binder is dropped! Patented No-Gap (TM) ring mechanism never opens by accident. Because these exclusive rings lock tight and stay that way, your important papers never tumble out with rough handling or when full. Plus, the gap-free design prevents misalignment so pages turn smoothly and easily. 1in. binder has hooks for hanging. The 1in. size vinyl binder comes with retractable hooks for hanging in file drawers - a convenient storage option that keeps your desktop clear! Pocket Guards inside keep everything neat and handy! Store promotional materials, photos, business cards or anything else you might need within easy reach in 2 large interior pockets. Color-coded inserts make identification a breeze. The included inserts fit snugly into the spine label holder so you can spot the right binder at a glance. Wilson Jones Binders part of a large selection of office supplies. Wilson Jones (R) Original DublLock (R) Round-Ring Binder, 3in. Rings, Black is one of many Binders available through Office Depot. Made by Wilson Jones.