An modern and simple umbrella base. It features our patented Dual-Purpose Stem, which allows you to use the base with a free-standing shade umbrella or reduce it to use under a table. The base is comprised of a Cast Aluminum Shell with a Cast iron center base and weighs 50 lbs. A 30 lbs. Add-On Weight option is available and recommended for free-standing applications, as well as a larger diameter stem to accomodate larger umbrellas. Available in several finishes to coordinate with our umbrellas.