The product is a set of three antique Lionel Pullman pre-war 0 gauge passenger cars. These replica cars are modeled after the Pullman luxury train cars and are designed to run on O gauge model railroad tracks. The cars are part of the Lionel brand's collectible line, making them sought after by train enthusiasts and collectors. With their vintage design and historical significance, these passenger cars would make a valuable addition to any model railroad collection.