For any umbrella with a conventional flanged cross brace base, the Coolaroo Four-Piece Universal Umbrella Base can be filled with water or sand to provide additional weight to improve umbrella stability in windy conditions (approximately 105 lbs. with water or 130 lbs. with sand). The contemporary design makes this four-piece base an attractive and practical enhancement to any umbrella. Each piece has a chrome-plated steel handle for easy carry. Made of high-density polyethylene and completely UV stable to withstand the elements. Three-year warranty. Imported. Seven-year warranty against UV degradation. Imported. 19.75L x 19.75W x 3H. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Patio Covers.