C1149N Wood Plank Grade Crossing2 Crossings per package.Realistic looking and ready-to-place. Injection molded plastic Wood Planks are notched to fit over rail spikes. Includes pre-cut shims to correspond to proper code. About Complete Terrain SystemThe Terrain System includes all the products you need to model realistic terrain. These products all work together to make it easy to build any type of terrain for your layouts, displays and other projects.