This heavy-duty deck umbrella mount fits poles with a diameter of 1 to 2 inches. Crafted from strong metal with a black powder-coated finish, it is built to resist rust and perform reliably in both outdoor and indoor settings.The umbrella holder for deck railings includes two widened clamps for enhanced stability. Made from durable metal, the clamps and included screws allow secure attachment to decks, pool decks, benches, bleachers, tailgates, boats, poles, and fences.Installation is quick and straightforward. The set comes with 8 screws, enabling you to find a suitable spot and mount the base in just a few minutes.By using this deck mount umbrella holder, you free up valuable floor space while gaining instant, convenient shade. It's an ideal solution for barbecues, outdoor work, and various recreational activities.