The Lionel 6-19165 Set of Lionel Lines 4 Car Aluminum Passenger Set is a replica of a streamlined passenger car designed by Lionel. The set includes four silver cars in a 1:48 scale, perfect for O gauge model railroads. This set captures the elegance and nostalgia of classic passenger trains, making it a must-have for any model railroad enthusiast looking to add a touch of vintage charm to their collection.