This detachable 4-panel umbrella base features metal interlocking fittings that securely connect each panel, creating a stable and durable foundation for cantilever and offset umbrellas. The modular design allows for easy assembly and disassembly while providing reliable support in various outdoor settings. Crafted from high-density polyethylene (HDPE), this fillable base resists UV rays, oxidation, corrosion, and cracking, ensuring long-lasting performance and fade-resistant color even after extended exposure to sun, rain, and moisture. Each weighted plate can be filled with water or sand, reaching up to 120 lbs. per plate when filled with water, and a total weight of 220 lbs. when fully filled with sand or water. This heavy-duty weight significantly improves wind resistance, keeping your offset cantilever umbrella stable and secure, even in breezy conditions. When not in use, the 4 panels can be easily disassembled and stacked together for compact storage, making it simple to store in a garage, shed, or closet without taking up valuable space. Each weighted plate is easy to carry and reposition, adapting seamlessly to grass, sand, concrete, or decking, offering stable support wherever you need shade, from patios and gardens to poolside areas. Color: Black. Material: Plastic.