The file 'Working HO Scale 100 Ton Freight Truck/BogieWith Wheels. 3D Printer Model' is (stl) file type, size is 215.8KB.
Working HO scale roller bearing freight truck including wheels. Uses 24mm long piece of solid 16 gauge wire as axle. See pictures for assembly. Track is: http://www.thingiverse.com/thing:308285 .