They are plastic and measure approximately 10" long

This is a Walthers 933-1 HO Scale Henry Ford's First Factory Building Kit

• diecast twin idler gear boxes

Since the actual mine and processing operations are often miles away

MTH 30-75349 O Norfolk Southern PS-2 Discharge Hopper ProductID_12322273 They are plastic and measureIntricately Detailed Durable ABS Body Metal Wheels and Axles Diecast 4 Wheel Trucks Operating Diecast Metal Couplers Colorful, Attractive Paint Schemes Decorative Brake Wheels Fast Angle Wheel Sets Needle Point Axles Unit Measures: 11 1 4" x 2 1 2" x 3 3 8" Operates On O 31 Curves Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: MTH Model Number: 30 75349 Road Name: Norfolk Southern (NS) MSRP: $49. 95