Keep your cantilever umbrella ready for use with this 48.5-Pound Round Outdoor Patio Cantilever Market Umbrella Base from Threshold?. Made from fiberglass, the base has an all-weather and fade-resistant design for lasting outdoor use. It features a round, textured light brown base with an integrated recessed handle for easy positioning, accompanied by a white pole holder with two hand-turn knobs to hold your umbrella firmly in place. Threshold?: Looks like home, feels like you.