The base is made of high-density polyethylene plastic (HDPE), much lighter than metal or stone, easier to move and place, and more beautiful at the same time. The unique design of the adjustable knob makes the assembly very simple and easy. The base can be compatible with the parasols of the most brands, maintaining the stability and safety of them even in bad weather. The capacity of each base is 13L. You can use a funnel to easily pour water or sand into the top opening as needed. Plastic material (HDPE) greatly reduces the weight of the base itself, moreover, there is a handle allowing you to move the base easily. The weight of each round base is about 2.7kg. It could be filled with water or sand to ensure its stability and safety.