The MTH O Scale MT-9301L Union Pacific "Challenger" Box Car is a pre-built model designed for O gauge model railroads. Made of plastic and featuring a multicolor paint scheme, this 1:48 scale box car is ready to go and perfect for collectors and hobbyists aged 17 years and up. With a grade of C-9 Factory New-Brand New, this model showcases the Union Pacific Railroad corporate roadname and transportation theme, making it a high-quality addition to any model railroad layout. Open box