The Bachmann Union Pacific HO Scale 1206 Train Engine in yellow is a ready-to-go model featuring a 1:87 scale plastic locomotive with an analog control system. This pre-built item, measuring 7 inches in length and 2 inches in height, is part of the Union Pacific Railroad theme and is designed for use on a two-rail system. Made in China by Bachmann, this train engine is perfect for model railroads and train enthusiasts looking to add a classic locomotive to their collection.