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: 10 1/8" x 2 11/16" x 3 3/4" Operates On O-31 Curves