Add an elegant and functional piece of outdoor decor to any patio or backyard with this cast iron, heavy-duty umbrella base stand. Durably constructed of cast iron, this outdoor patio umbrella base is weather resistant and can withstand the elements outside to last season after season. This base for patio umbrellas is also incredibly versatile and can accommodate umbrella poles of different sizes. The stand alone can accommodate umbrella poles up to 2" in diameter. The included pole adapter is designed for smaller patio umbrella poles and can accommodate poles between 1.5" and 1.75" in diameter. The patio umbrella stays firmly in place with the included thumbscrew.