Intricately Detailed Durable ABS Body Metal Wheels and Axles Die-Cast 4-Wheel Trucks Operating Die-Cast Metal Couplers Colorful, Attractive Paint Schemes Decorative Brake Wheels Fast-Angle Wheel Sets Needle-Point Axles (9) Piece Pipe Load Unit Measures: 11 5/8" x 2 1/4" x 3 3/4" Operates On O-31 Curves