Designed with a large reservoir that can be filled with sand or water to add stability-Made of high-strength HDPE material, waterproof, aging-resistant, durable enough-Equipped with protective pads on the bottom, keeping the umbrella base stable-The bottom groove can be used for storing the pole or as a carrying handle-Suitable for various occasions: patio, poolside, beach, terrace, garden, deck, etc-Can be easily set up or taken down, no tools required-The pole can be stored on the bottom groov