4 Drawer File Defender® Security Bar with Lock. Fits 4 drawer VERTICAL filing cabinets. Does NOT fit LATERAL files (with wide drawers). Heavy-Duty Steel, Built-in lock with 2 keys, baked-on powder coated black finish. 51.25" bar length (up to 1.5" may be trimmed from bottom with hacksaw if necessary). Includes mounting hardware and extra bolt for side-of-file storage of bar when not in use. Instructions included.