This Lionel train track is part of the company's three-rail system that is designed to accommodate trains that are O-gauge. There are 16 track sections with this set, and each section is 22 1/2 inches long. When all of these sections are connected, they will form a complete circle. The complete circle is easy to assemble as the track utilizes Lionel's easy-connect feature. Each piece of track has a gray base to simulate an actual track's footing.