The Lionel 2233519 O Gauge Non-Powered SD40-2 Diesel Engine in BN #1876 is a ready-to-go, pre-built model featuring a multicolor design with a scale of 1:48. This non-powered locomotive is part of the Three-Rail System and is made of plastic and diecast materials, perfect for model railroad enthusiasts looking to expand their collection with a high-quality replica of a Burlington Northern engine from 2022.