One Product Three Uses - The upgraded design inground umbrella base consists of two parts, including a base and ground stake umbrella stand, and can be used in three different.The umbrella holder can be used on concrete floors, the ground stake design can also be inserted into lawns, and the included spacer can also be used on.One product for multiple usesAdjustable Knob-There are two adjustable knobs on the inground umbrella stand, suitable for umbrella poles with a diameter of 1-2 inches, insert the umbrella into the umbrella tube, you can adjust the tightening according to the size of the umbrella poles, the loosening of the poles and tilting of the umbrella frameDurability - The umbrella base made of, the whole completely covered with black anti-rust powder coating, high hardness, hard and stable structure, not to break and deform.Drainage holes at the bottom to prevent water accumulation, prolong the service life, not to rust, applicable toWide Application - Umbrella base can be installed on most surfaces, can safely lock your parasol, flagpole, windward pole, umbrella sun rope pole, camping tent pole, compatible with poles to 1.9inch (4.8cm) in diameter.for decks, docks, beaches, patios, lawns and moreto install- The deck umbrella stand comes with three sets of mounting accessories, no need to buy additional mounting accessories to get three mounting methods, can be installed in a few minutes, it's your choice for shade. And the umbrella stake anchors won't hurt your lawn and won't your grass growth

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