Intricately Detailed Durable ABS Body Metal Wheels and Axles Die-Cast 4-Wheel Trucks Operating Die-Cast Metal Couplers Colorful, Attractive Paint Schemes Fast-Angle Wheel Sets Needle-Point Axles 1:48 Scale Dimensions (4) 10" Sections Of ScaleTrax Straights O Scale Kadee-Compatible Coupler Mounting Pads Unit Measures: 14 5/8 x 2 5/8 x 2 9/16" Operates On O-31 Curves