These one-piece, rigid foam castings make it easy to create custom scenes along your railroad. The material is easily cut with a hobby knife or saw and can be used to model fences, building sides, retaining walls and other types of construction. Each casting is molded in color and painted, but easily customized with most brands of hobby paint. Each measures 15-1/4 x 11-1/2" (39 x 29cm), unless noted.