Support your patio umbrella without worrying about cracking and fading. The Umbrella Base is crafted with a U.V. stabilized polymer that will not rust or dent and can withstand the elements in any weather climate. The base accommodates 1” and 1.50” poles and should be used with a patio table. This base can either be prefilled with 50 pounds of a solid concrete core or empty and ready to be filled with sand or gravel. The umbrella bases come in a variety of colors and prefilled or empty options.