The Atlas O Gauge Trainman 40' Stock Car in Union Pacific 3 Rail #20024403-1 is a ready-to-go pre-built model train car designed for O gauge railroads. This 1:48 scale stock car features the corporate roadname of Union Pacific Railroad, making it a realistic addition to any model trains collection. Perfect for enthusiasts looking to expand their two-rail system with high-quality, detailed freight cars from a trusted brand like Atlas.