The Atlas Master FMC 5503 Double-Door Boxcar is based on the 52' cars that are favorites for shipping lumber and forest products. This model features accurate body details, 70-ton trucks with free-rolling wheelsets, wire grab irons, etched-metal details, an X-panel roof, fine paint, crisp lettering and AccuMate(R) magnetic knuckle couplers. The FMC 5503 52' Double-Door Boxcar is one of many Atlas HO Scale boxcars.