This easy-to-assemble Accurail HO Scale AAR 40' Single-Door Steel Boxcar kit is based on widely used 40' boxcars constructed to AAR designs. It features a one-piece detailed injection-molded body with most details such as grab irons are 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.