This ready-to-run N Scale 50' Plug-Door Boxcar from Micro-Trains(R) is based on cars built beginning in the 1940s and used into the l990s. Plug-door boxcars were typically insulated for loads requiring relative constant temperatures. Models include free-rolling Delrin(R) trucks with contoured axles, truck-mounted Magne-Matic(R) couplers and diecast metal underframes or interior weights. Cars also include thin-profile foot stirrups, brake wheels and fine decoration.