In the world of model train sets, you can build your set using several different sized tracks. O-gauge refers to the width of the track and is the most common type, as the space between the rails is small and features wider curves than other gauges do.
Many pre-WWII model train enthusiasts use O-gauge trains because the sets are affordable and durable. Additionally, the sets are easy for smaller hands to handle. Introduce your children to your hobby with an O-gauge set of their very own.