The 12" Balustrade System meets your needs when you require a defining balustrade with robust detail. This top rail measures 10 feet in length. It includes an elegantly detailed design. It has the appeal of wood millwork or cast stone, but it is crafted in polyurethane, one of today's most popular exterior materials. Balustrade system rails are precision molded in rigid urethane. Versatile polyurethane performs exceptionally well in exterior applications. The closed cell structure of polyurethane locks moisture out, thereby preventing cracking, peeling, staining, rotting, mildew and insects. The rail is enhanced further at the core with heavy-duty vinyl tubing.