HO scale is 1:87 size with 16.5mm track gauge and a minimum radius of 15 inches.

HO scale train sets are an excellent size to appreciate the detail and running performance without being too cramped. Also, many many train enthusiasts say that HO scale train sets are ideal for running their model trains using a digital setup.

If you’re looking for model trains that require lots of switching operations then train enthusiasts will generally agree that HO scale trains are an excellent choice.