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 O Scale Kadee-Compatible Coupler Mounting Pads Detailed Brake Wheel Separate Metal Handrails 1:48 Scale Dimensions Unit Measures: 9 1/2" x 2 1/2" x 3" Operates On O-31 Curves