50lbs Round Umbrella Base Water Filled With Steel Umbrella Holder

【Product Details】The heavy duty umbrella base is made of durable HDPE material. Weather resistant, steel tube, very good sturdiness. The size of the base is 19 inches x 19inches x 4.3 inches, maximum loading weight:50 lbs. Will fit most 6-10 foot umbrellas on the market ideally. Not suitable for offset or cantilever umbrellas.【Adjustable Rotating Knob】This product is designed with a round base, two hand-twisted tightening knobs can fix the umbrella on the base. Dual lock design can lock the umbrella tightly. There are three different sizes of plastic heads to match different sizes of umbrellas, the plastic inserts into the top of the steel tube to fit 1.5"(38mm)-1.9"(50mm) umbrella poles.【Water or Sand Filling】The top of the round base has a filling hole for water or sand filling, which is filled for maximum stability and improved support. It can hold up to 55 pounds of sand or 19 liters of water, or empty it to be easily moved anywhere!