● Large base with 150 lbs capacity is free to add wet sand to enhance stability● Match well with 1.5"-1.9" umbrella poles and 7.5 ft-11 ft patio umbrella● Built-in drain hole and large capacity make it a perfect flower box● Hand-turn knob is easy to tighten the umbrella pole into the base● Powder coated steel base is rust resistant and sturdy● Equipped with 2 wheels for effortless movement● Practical design is ideal for various occasions● Detailed instruction guide you quickly get a stable patio umbrella