On30 uses the American O scale of 1/4" to the foot, (ratio 1:48) to operate trains on HO gauge (16.5 mm/0.65 in) track. The 30 indicates the scale/gauge combination is used to model 2 ft 6 in (762 mm) narrow gauge prototypes, although it is often used to model 2 ft (610 mm) and 3 ft (914 mm) gauge prototypes as well. We have categorized items to make browsing for specific products easier for customers. Should you find something is not in the correct category or encounter an error with the website, please send us a message on the "Contact Us" link so that we may correct the item or problem.
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