The Marx Electric O Gauge Model Railroad Union Pacific 666 Steam Train Set is a vintage starter set that includes a steam locomotive, box car, freight car, and caboose in multicolor. Made of plastic and scaled at 1:48, this ready-to-go set features an analog control system and is themed around transportation. With its nostalgic appeal and United States origin, this Union Pacific Railroad-themed set is sure to delight collectors and hobbyists alike.