Model: The flat car superstructures are constructed of metal. One of the flat cars is loaded with split pipe, one with a set of 3 angled pipes, one with a flanged angled pipe, and one with two flanged pipe connection pieces. The loads are represented as looking slightly rusty. The cars have different car numbers. Stakes that can be mounted on the cars are included. All of the cars are individually packaged. Length over the buffers for the 6-axle cars 15.2 cm / 6". Length over the buffers for the 4-axle cars 12.4 cm / 4-7/8". DC wheel set per flat car E700580.