This heavy-duty round umbrella base is an essential addition to any outdoor space, providing stability and durability. Filled with up to 83 pounds of sand or 19 liters of water, it ensures your umbrella remains firmly in place, even in strong winds. The high-quality, weather-resistant polyethylene plastic construction guarantees long-lasting use, while the included galvanized steel pipe adds extra strength and prevents corrosion. Designed to fit a wide range of patio and market umbrellas, this base features two adjustable knobs that securely hold poles ranging from 1.38