This 7" Balustrade System Top Rail measures 8 feet in length. It is finely molded in design and crafted in durable urethane. The top rail is precision molded in high-density, rigid urethane. The closed cell structure of urethane makes it non-porous and highly resistant to the effects of moisture; the rail resists mildew, decay and insects. The top rail is also reinforced at the core with heavy-duty vinyl tubing. The urethane balustrade system offers unmatched beauty, durability and cost-effectiveness. Our extensive selection of system components ensures that there is a balustrade system that will conform to and accentuate virtually any exterior space. Define and enhance porches, balconies, patios and more.