The Prova railing system from DOLLE offers interior and exterior railing systems that are component-based, easy to install, and beautifully designed. The Prova railing system offers several different configurations that provide a sleek, contemporary, custom look at DIY pricing. Prova railings are perfect for any home - creating dramatic sightlines outside, and making small spaces seem larger inside.The Prova PA1ab anthracite top mount post provides a 42-inch-high railing with 10 levels of horizontal infill. Prova posts are configured to work with both Prova stainless-steel tube infill and Prova stainless-steel cable infill. Both tube and cable infill spacing are under 4 inches for residential code compliance. Prova posts are constructed of extruded aluminum with an anthracite powder coated finish. Post mount base, handrail connector, and infill fittings are constructed of steel with an anthracite powder coated finish.Posts can be mounted into wood, composite, or concrete backing with appropriate fasteners. No special skills required - Prova is designed for easy assembly with basic hand tools. Prova railings by DOLLE are the perfect railing system for today's modern, open floor plans inside while also providing beautiful, unobstructed sightlines outside!.