FEATURES: 66 lb. Umbrella base Designed to be weather-resistant with a blended poly-resin Made with textured brown corrosion-resistant 17.5" metal dual purpose stem that comes in 2 pieces Works with free-standing or market umbrellas Works with umbrella poles up to 1.63" Designed with comfort grip threaded anchoring knobs for holding strength Recommended for up to 9 ft. canopy sized umbrellas