This cast iron umbrella base for umbrella poles with a diameter of 35/38/48 mm will keep your umbrella stable and upright. Robust and stable: Iron frame offers durability, stability, and superior oxidation resistance, making it a great choice for industrial and furniture construction alike.Space-saving and portable: With only one knob, it’s very easy to get the umbrella mounted, keeping the umbrella fastened tight and straight. Additionally, this umbrella base takes up less space on your deck or patio. It is also lightweight for easy transport.Compatible with multiple pole sizes: The tube diameter can be easily adjusted using a tightening knob to accommodate umbrella poles with a diameter of 32, 34 and 38 mm. Good to know:This umbrella base is not suitable for installing large, heavy umbrellas or flagpoles on the deck and patio.

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