The Atlas O gauge diesel locomotives Switcher is a pre-built model designed for a three-rail system. With a scale of 1:48, this locomotive features a digital control system, making it suitable for hobbyists aged 17 years and up. The locomotive is themed around transportation and is designed in green, black, and red colors, adding a realistic touch to any model railroad setup. This switcher is a great addition to any O gauge railway collection for those interested in model railroads and trains.This Is The 6140-2 3 Rail BNSF 3523’It Is An SW-1200 With Lionel TMCC . It Hs Never Been Run Or Out Of Its Box Except Today . Good Luck And Happy Shopping