This fillable umbrella base stand measures 45 x 30 cm (Dia. x H) and the total weight(when being filled with water) including the base itself is 18 kg. The large reservoir can hold up to 15.5 L water, 25 kg sand, or 30 kg sand and water, improving wind resistance and stability. Besides, it is made of premium HDPE material, which can resist all weather, ensuring long-lasting durability. Thanks to the 2 adapters of 38 mm and 48 mm diameter, the umbrella stand is suitable for most 270-300 cm market umbrellas and patio table umbrellas. And with its exquisite pattern and classic black colors, this weighted umbrella base goes well with any decor theme. Refillable Reservoir: The umbrella base stand can be filled with 15.5 L water, 25 kg sand, or 30 kg sand and water, making it heavier for different weather conditions. Besides, when emptying it, the umbrella base only weighs 2 kg for effortless movement. Rugged and Durable Material: The patio umbrella holder is crafted of high-strength HDPE ma