The Treasure Garden Steel 120 lb. Base with Wheels is the ideal base for use under tables with low clearances or for any location where frequent movement of your umbrella is needed. It is made from hardened steel in a black finish and has four wheels, two of which have locking and swiveling casters, so it can be moved easily. This heavy umbrella base has a dual-purpose stem, a Treasure Garden exclusive, which permits use for free standing applications as well as under a table. It comes with a 2" stem and includes a 1.5" reducer for use with smaller diameter umbrella poles.