This impressive model is an accurate replica of these cars as they appeared after the 1956 renumbering. The it includes 75 styrene and Delrin(R) parts, including bearings, couplers and nonmagnetic wheelsets. A complete set of thin-film decals is also provided. Coupler pockets will accept Kadee(R) On3 couplers. Additional parts are provided to model some variations. The kit can also be used as a starting point for a Class V car; however, this requires purchase of brake cylinder #300-97, piping #300-112 and a strip of .015 x .030 brass, all sold separately.