Intricately Detailed Durable ABS Body Metal Wheels and Axles Die-Cast Sprung Metal 4-Wheel Trucks Operating Die-Cast Metal Couplers Colorful, Attractive Paint Schemes Fast-Angle Wheel Sets Needle-Point Axles 1:48 Scale Dimensions O Scale Kadee Compatible Coupler Mounting Pads Each Car Contains Removable Pipe Load Each Car Individually Numbered Each Car Measures:16" x 2 3/4" x 4" Operates On O-31 Curves