This weighted umbrella base is crafted from all HDPE material that is crack resistant, UV protected, and resists deformation for lasting durability. The set includes four removable fan shaped weight plates to stabilize your cantilever umbrella base (base not included). Plates stack easily for compact storage. Each plate holds up to 120 lbs with water or up to 220 lbs with sand for excellent wind resistance. Built in spouts with twist off caps allow quick filling and prevent leakage, keeping your patio clean and dry. Lightweight and portable before filling, easily move it to your garden, yard, or poolside.