The Woodland Scenics Mod-U-Rail System gives you the freedom and convenience to build the layout of your dreams: one module at a time! The system consists of two module kits, straight and corner, which when assembled, can be bolted together to create a layout of any size, in most any scale. These kits have all the basics, including landscaping, for building a module, but you are not limited to using just the materials in the kits. Woodland Scenics has a variety of SubTerrain, Terrain and Landscaping products for your layout. You can add details at any time to express your individuality. The kits go together quickly and easily with expert results.