Intricately Detailed, Durable ABS Body Metal Wheels and Axles Die-Cast 4-Wheel Trucks Fast-Angle Wheel Sets Needle-Point Axles (2) Operating Die-Cast Metal Couplers Detailed Brake Wheel Near-Scale Proportions Unit Measures: 13 3/8" x 2 3/8" x 3 7/16" Operates On O-31 Curves