KATO KATO HO Gauge HO Unitrack R550 Endless Track Set Railway Model Rail Set HV-5 3-115

---------------------------------------------------------------------- Introducing the ``HO Unitrack Track Set Series,'' which allows even beginners to easily realize layout plans that are ``easy to understand'' and ``easy to buy.'' Even railroad model beginners can expand the layout plan as they wish, and the HO Unitrack can be expanded at will, from small layouts to large layouts. This is a plan that allows you to easily enjoy train running even in limited space with a single line oval endless curved track with a radius of 550 mm. The radius of the curved line is 550mm.