Ensure the stability of your offset umbrella with this durable 4-piece Hdpe umbrella base set. Constructed from all-weather resistant material, it resists cracking and fading. Each 20"" x 20"" x 5"" plate can be filled with water or sand for added weight, providing powerful support against strong winds. Easy to assemble without tools, this base set features an easy-to-fill spout and stackable plates for convenient storage. Lightweight and portable, it includes built-in handles for effortless transport.