Perfect Partner for Your Patio Umbrella!Our fillable umbrella base stand measures 18 in. Dia x 12 in. H and the total weight when being filled with water including the base itself is 40 lbs. The large reservoir can hold up to 4 Gal. water, 55 lbs. sand, or 66 lbs. 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 1.5 in. Dia and 1.9 in. Dia, the umbrella stand is suitable for most 9 ft. to 10 ft. 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. Material: Plastic.