About 20 years ago Marklin commissioned Noch to make two layouts: one for winter and one for summer using the smallest radius available in Z. Noch came up with two detail rich layouts for the smallest space. These are perfect if you live in a cramped NYC apartment like my Wife and I once did. Big on details including 10 people, 5 buildings, 23 trees, wooden bridge, open girder bridge, stream and pond, a phone booth, and even a VW Bug. This summer layout features static grass and rocky landscape features. Electronics are simple and include 3 position toggle for neutral, forward and reverse direction, speed controller, and plug. What you need is a power source for up to 9 volts either with a battery or an AC adapter. I recommend the AC Adapter by Powerline, their version that is labeled ‘Universal’, it features a switch that lets you adjust power from 3V – 12V which is handy for fine tuning the speed controller; mine is set for 6 volts which is perfect. A 9V battery won’t give this level of control. Dimensions: outer diameter is 15 1/2 inches. Originally the layout retailed for close to $600. If you can’t find one of these layouts don’t fear you can make your own out of foam and wire it with the Noch speed controller available for under $90 at ZscaleHobo.com, Frank also sells the Noch StaticMaster for applying static grass.