The Minitrix 4N-Scale 871 & 4872 Loco/Diesel, EMD F9 Union Pacific - 510&510B is a model train locomotive designed for collectors and hobbyists. The two-rail system and scale of 1:160 make it suitable for enthusiasts age 17 and up. With a theme of transportation, this ready-to-go pre-built model features a plastic and diecast design, representing the Union Pacific Railroad in Germany. The Minitrix brand ensures high quality and attention to detail for a realistic train simulation.