The Athearn N Scale Unlettered 4-6-6-4 Challenger Steam Loco D&RGW MPN 11801 is a detailed model of a steam locomotive in 1:160 scale designed for collectors and hobbyists. This pre-built ready-to-go piece features a black color scheme, digital control system, and is DCC fitted for added convenience. The replica of the Challenger locomotive with a wheel configuration of 4-6-6-4 is perfect for enthusiasts aged 17 years and up who enjoy model railroads and trains. With its realistic design and features like a tender, this locomotive is a great addition to any transportation-themed collection.