Antirust materialsThis deck mount umbrella holder made of heavy duty metal base for durability.The patio umbrella stand lets you say goodbye to the hassle of carrying around a bulky and awkward umbrella base that no longer requires laborious transportation and setup.Easy to installNo water or sand needed to fill the base. The patio pole holder be screwed or bolted to your decking or patio. The patio dock umbrella base stand also use for flagpole holder. Suitable for residential and commercial use.Widely useThis umbrella base stand works great for decks,docks,pontoons,patios,picnic tables and anyplace else you can fasten it with the included lag screws.Simply install the patio umbrella base heavy duty and the included screws to adjust the angle to your preferred position in the ground .You can enjoy shade and sun protection in your home, garden, resort, swimming pool, company lounge area.Quality GuaranteeIf you have any questions about patio umbrella base stand, please feel free to leave us a message.Wide compatibilitySmall footprint of 4 4/5" x 4 4/5" with incredible strength. Universal interface design, suitable for about 1.1-1.9 inches of diameter of the umbrella pole, whether it is a home sun umbrella, advertising umbrella or beach umbrella, can be good matched, easily fixed, improve the overall beauty of outdoor space.