Add this Classic 31-lb Umbrella Base to any 9-ft market umbrella for sturdiness and support. Crafted from impact and weather-resistant blended poly resin, this base won't rust or crack. Its bronze-textured, corrosion-resistant finish is designed to withstand the elements for years without ever needing to be repainted. A powder-coated, single-piece stem allows for quick and easy assembly. Simply tighten the included tension knob to firmly secure your umbrella pole in place. Accommodates umbrella poles up to 1.63-in in diameter. For use with a patio table only. 90-day limited warranty.