Prototype: Low side car, stake car with a stack of ties, and a gondola with a load insert of "ballast", all in a construction train version. Modern design construction vehicle.
Model: All of the cars have Relex couplers. Length of the freight car set 34.5 cm / 13-9/16". Contents: 5 no. 24188 straight track, 4 no. 24172 straight track, 1 no. 24224 curved track, 1 no. 24612 right turnout, and 1 no. 24977 track bumper. Construction vehicle constructed mostly of metal.
Extension set to go with the 29184 "Construction Site" starter set. This theme world can be expanded even further with the 44083 freight car set.