● Equipped with a large reservoir that can be filled with sand or water to add stability● Equipped with 1 universal and 2 directional wheels easy to move the base around● Equipped with a retractable pull rod effortless to transport the base● Lift the rod to retract the wheels at the base for quick and secure locking● 3 adapters ensure a snug fit for various umbrella sizes universal fit● Suitable for patio umbrella poles of 1.89"/1.5"/1.34" 48/38/34 mm recommended with 6-10 ft/180-300 cm umbrellas● Crafted of premium HDPE designed to withstand the elements built to last● Perfect addition to various occasions beaches poolsides backyards terraces etc