KATO 3-115
HO HV5 R550mm (21 5/8") Basic Oval Track Set

The HV5 (previously the 3-102 basic track oval) creates a basic
oval made from 21 5/8" track to fit within a 4'x8' space and
includes a rerailer accessory, feeder track and power adapter
cord to allow you to build a basic oval layout that can easily be
powered and expanded upon.