The Truck Key Keeper™ is perfect for trucking firms and commercial truck fleets. The box is made of heavy gauge steel with a charcoal grey baked enamel finish and a welded hinge to prevent knockout. It keeps keys secure within a truck, as well as helps to eliminate loss of ignition keys for large fleets. HPC’s Key Keeper is like a small bank vault. It mounts under the hood, onto an inside fender or body wall, with the 3 included sheet metal screws. 7-Pin tubular lock installed.