3x Triple Track, Railway Gantry Catenary Kits. OO/HO Gauge. Light Signal This listing is for 3x Triple Track, Railway Gantry Catenary Kits. Each kit has the overall measurement of 178mm X 68mm X 14mm. The kit will be unassembled and consist of 7 parts. The kit can be assembled with a little pva craft glue. I can make custom orders. Please contact me for more details. This MDF item is supplied as plain MDF Made from high quality 2.0mm thick Medite (laser quality MDF), plain finish ready to be painted and decorated. These item are laser cut, the laser cutting process produces a brown finish to the edges of the MDF. All laser processing marks can be easily removed by a light sanding or simply painting over.