• 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