● Refillable reservoir can be filled with 38.5 lbs/ 17.5 kg water 66lbs/ 30 kg sand 88 lbs/ 40 kg water & sand● High quality HDPE material is weather-proof impact-resistant and non-fading● Equipped with hand-turn tightening knobs for secure fit● Fit 1.5"/1.9"(38 mm/48 mm) diameter umbrella pole● Anti-skid protection keeps the umbrella stand in place● Carrying handle promotes effortless movement● Simple assembly saves your time