Durable ABS Intricately Detailed Bodies Metal Wheels and Axles Overhead Interior Lighting Die-Cast 4-Wheel Trucks Operating Die-Cast Metal Couplers Colorful, Attractive Paint Schemes End-of-Car Diaphragms Fast-Angle Wheel Sets Needle-Point Axles Detailed Car Interiors 4-Car Sets Feature: (1) Baggage, (1) Coach, (1) Vista Dome, (1) Observation Unit Measures: 68 3/4" x 2 5/8" x 3 5/16" Operates On O-31 Curves