Keep your umbrella secure and stable with the Outsunny Black Concrete Parasol Base. This circular umbrella base stand weighs 25kg and offers a decorative, high-end touch to your outdoor living area while also performing the important task of holding your umbrella in place. This sturdy, rust-resistant parasol base is made with a combination of steel, plastic and cement. The strong cement base with a PP shell and the adjustable screw tensioner holds the umbrella securely and evenly in place. Suitable for umbrella pole diameters of 35mm, 38mm and 48mm.