HO HV1 Outer Oval - Track Set Enjoy DC and DCC! Our HO Track Sets are only the beginning of your HO scale Unitrack layout! Experience the snap-together reliability and convenience of Unitrack while enjoying the realistic appearance and texture of the molded roadbed. Each set can be used as packaged for the simplest of temporary single-track operation, or they can be combined with additional Unitrack sections and turnouts to create a larger and more elaborate configuration. Available in two varieties, the basic Unitrack oval and the more complicated WGH plan set, Unitrack is all set to start your layout right! Creates a basic oval made from 28-3/4 inch radius curves that can fit around (and run parallel to) the HM1. Includes a basic track oval and a track feeder for supplying power from a Kato Power Pack.