The 4-piece weighted umbrella base by almost and co. is perfect for securely supporting your cantilever patio umbrella! This fillable base is meant to be used with offset or cantilever umbrellas with a crossbar base. Each plate features a spout to help with quick and convenient filling with sand as well as easy cleaning and storage. The plates are made of sturdy high-density polyethylene (HDPE) plastic and can hold up to 36.25 pounds of sand for a total of 145 pounds to ensure your umbrella will stand up to the wind and elements. With a convenient foldable handle on each plate they are easy to move and position after they are filled.