For planning and setting up Z layouts in a scale of 1:2. Enough material is included for a medium size layout. All of the track section pieces are provided with catalog numbers. The track section pieces are arranged in 5 colors (3 radii, straight sections, and turnouts). The track sections can be snapped together quickly and firmly. Layouts can be planned in a reduced scale almost like a game without prior knowledge of the track geometry. Departures from the geometry are immediately recognizable thanks to the different colors of the track radii.