Reliably support your cantilever umbrella with the heavy duty umbrella base! Made of high-quality HDPE material, which is weather-resistant and not easily deformed, our 4 pcs square umbrella base can last for a long time. The 4 separate plates can be put together quickly to fit your umbrella cross bar base(not included). With easy to fill spout, large capacity water and sand can be filled to enhance stability and wind resistance. But the umbrella base is surprisingly lightweight before filled with water. Moreover, it comes with hidden handle to make it easy to carry around. And the 4 plates are stackable, making it easy to store.