A secure solution to stabilize your round umbrella base.To keep your umbrella stable, the heavy-duty umbrella base can be filled with either 57 lbs of water, 66 lbs of sand, or 88 lbs of wet sand, making it suitable for 6-10 ft patio umbrellas. Furthermore, the patio umbrella base is equipped with 3 adapters, making it compatible with patio umbrellas featuring pole diameters of 1.89""/1.5""/1.42"". Additionally, there are 2 turning knobs to ensure a secure fit of the umbrella pole. Constructed from high quality Hdpe material, the umbrella stand offers exceptional durability. Also, the fillable base is designed for swift and effortless installation.