This umbrella base is a reliable and versatile solution for securing your patio or market umbrella in any outdoor setting. Made from high-density polyethylene plastic, it is designed to withstand all weather conditions, ensuring long-lasting durability. The base can be filled with up to 83 pounds of sand or 19 liters of water, or a combination of both, to provide the necessary weight for stability. It features a galvanized steel pipe that resists corrosion and maintains its firmness over time. The adjustable knobs allow for a secure fit, accommodating umbrella poles with diameters ranging from 1.38