This is the Accurail Inc AAR 40' Single-Door Steel Boxcar HO - Kit, Western Maryland 27569 (Boxcar Red, Fast Freight Logo), Walthers Part # 112-3555. This easy-to-assemble Accurail 50' Riveted-Side Double-Door Boxcar kit is based on common 50' boxcars used in the transition and diesel eras. The car features a one-piece detailed injection-molded plastic body with most details molded in place for durability during operation. Other features include realistic decoration with end reporting marks (on decorated models), underbody details, trucks with Delrin wheelsets, nonmagnetic axles and AccuMate(R) magnetic knuckle couplers. This steel boxcar kit is great for modelers of all skill levels and includes complete instructions.