This our brand new water filled umbrella base ,a sturdy base for your patio umbrella. It s constructed of heavy-duty Hdpe plastic with weather resistant Uv protection that prevents color from fading and easy to maintain. It can be filled with 145lbs sand /115lbs water ,so that plates provide additional weight make your patio umbrella stand perfectly in windy conditions, You don t need to worry any puff of wind which disturbing your summer relax in the shade. Don't hesitate to buy one !