MODEL FEATURES: : Separately applied brake wheel Underbody with brake system details 4-packs with unique road numbers for building longer trains Machined metal wheels with RP25 contours Weighted for optimum performance Body-mounted McHenry operating scale knuckle couplers Highly-detailed, injection-molded body Painted and printed for realistic decoration Minimum radius: 18” : PROTOTYPE AND BACKGROUND INFO:: In railroad terminology, a stock car is a type of rolling stock used for carrying livestock to market. A traditional stock car resembles a boxcar with louvered instead of solid car sides (and sometimes ends) for the purpose of providing ventilation; stock cars can be single-level for large animals such as cattle or horses, or they can have two or three levels for smaller animals such as sheep, pigs, and poultry.