Bowser HO Scale ready-to-run 70-Ton 12-Panel 3-Bay Hoppers are based on typical cars used by railroads serving coal mines and for hauling aggregates. The cars operated from the 1950s to the 1990s and beyind in work train service. These layout-ready cars feature accurate decoration, molded details, free-rolling trucks with metal wheels and magnetic knuckle couplers. The 70-Ton 12-Panel 3-Bay Hopper is a great addition to your ore-hauling, diesel-era car fleet. is part of the entire line of Bowser HO Scale ready-to-run freight cars.WARNING: This product can expose you to chemicals including STYRENE, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov