This is an HO scale Rivarossi passenger car set featuring Union Pacific’s lightweight design. The set includes multiple cars in yellow and gray color scheme, suitable for model railroads and train enthusiasts. Made of plastic, the cars are pre-built and ready for use in a 2-rail-2-conductor rail system. The set is designed for realistic passenger travel scenes in a 1:87 scale HO gauge. HO Scale UNION PACIFIC Lightweight Passenger Set B -RIVAROSSI R6996.