The MTH 20-6020 Louisville and Nashville 4 Car Passenger Set is a beautifully detailed O gauge model train set featuring passenger cars from the iconic Louisville and Nashville railroad. Made of plastic and diecast materials, these multicolor cars are designed to run on a three-rail system with a 1:48 scale. Each car also features working light functions, adding an extra level of realism to your train layout. This set is perfect for collectors and hobbyists looking to expand their model railroad with high-quality replicas of historical locomotives and passenger cars.