Bachmann On30 Scale Freight Car and Passenger Car trucks are perfect as replacements for trucks on your On30 models or as trucks for your kitbashed or scratchbuilt rolling stock. As with all On30 Gauge models, this set of trucks is scaled to 1:48 O Scale proportions and appearance, but is built for operation on HO gauge (16.5mm gauge) track to represent narrow gauge trackage. Check out these types of available Bachmann On30 narrow gauge trucks.WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov