Enjoy a shady and cool place with our patio square umbrella stand!The heavy-duty patio umbrella base is made of high quality materials to withstand the test of time. Supported by the reinforced cross structure, the outdoor umbrella stand stands stably and holds umbrellas (not included) firmly. Besides, you are able to fill the 2 sandbags with heavy weights up to 200 lbs/90 kg in total. Therefore, the overall steadiness will be enhanced. Coming with an 1.9"" adapter, the patio umbrella holder fits a variety of umbrellas up to 15 ft. You can tighten the adjustable knobs for better fixation. Furthermore, the waterproof and sunproof cover protects the square umbrella holder for longer service time.