Here is a MTH 40-1001 RealTrax 10 Inch Straight Track Section. Realtrax is simply the easiest O Gauge track system ever manufactured. Featuring metal rails strong enough to stand on and a built-in roadbed for a realistic appearance ensures that a RealTrax layout will last for years while sporting a realistic appearance not found in other O Gauge track systems. RealTrax incorporates built-in track bed joiners and long-lasting sprung- metal electrical connectors that make assembling RealTrax literally a snap. The built-in roadbed prevents any dirt from staining your carpet and it comes apart so easily that your temporary layout can be disassembled in minutes. While the RealTrax system won't rust or oxidize in an outdoor environment, the plastic roadbed and rail ties are constructed of ABS plastic that can be compromised outdoors. Essentially, ABS plastic is not designed to withstand extreme temperature swings and can distort (in high heat) or crack in extreme cold. In addition, the plastic will tend to fade in color since it has not been treated with UV resistant paint. As a result, we do not recommend that RealTrax be used outdoors.