The crane tender had two jobs: to protect the crane's boom and enable it to be coupled with other cars on the way to a wreck site, and to carry the tools, chains, slings and other gear needed to clear a wreck. Unlike the crane itself, which was a precision piece of gear made by a specialized company, the crane tender was usually a home-built affair, cobbled together from whatever a railroad's shop crew had lying around. This model represents a typical such car, built from what appears to be an older flatcar and an obsolete bobber caboose, functioning as an equipment shed.
 
Model features include intricately detailed ABS body, metal wheels and axles, operating die cast metal couplers and die cast tender trucks.