• 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