This NEW in the box O Scale K-Line Model #K6252-1311 Chicago & North Western Railway Die Cast 2-Bay smooth sided hopper with coal load measures 10″ long coupler to coupler. This car is a split out from the original four car set. The road number for the car you will be receiving is CNW 50047. The car features a Die Cast body, Operating Metal Couplers and Fully Srung Die Cast Metal Trucks This car is very heavy, and when boxed for shipment weighs almost three pounds. The car runs on 031 or larger curves. New Die Cast K-Line rolling stock is getting harder and harder to find. USPS shipping.