MyUmbrellaShop's ?50 pound cast iron umbrella base is perfect for securing any outdoor umbrella. This umbrella base has a split neck to aid in using with more style table. It also has 2 tightening screws to ensure your umbrella is snuggly fit in the umbrella base. ? The T500 50 pound base is sure to make enjoying your outdoor area a little easier and with confidence that your umbrella is not going to blow away on those windy days.