The flat post top installs with the balustrade newel post. This post cap is designed for use with the 6" balustrade system, a system that is balanced in size and durable in design. The flat post cap details the newel and gives the balustrade a refined and customized appearance. Balustrade accessories are molded in high-performance urethane. The flat post top is crafted with the precision and classic detail that makes urethane a modern favorite. It is also moisture-resistant, so it will not peel, crack or decay. Urethane balustrade components are primed when crafted and ready for installation. Install newel post caps with our durable adhesives.