This umbrella base combination of durable PE material and excellent blow molding technology, it can ensure weather resistance and long-lasting use. Four plates are connected by four connectors and a heightening pad and the sturdy 4-plate structure is very easy to disassemble and carry. Most importantly, you can fill it with water so that it can weigh up to 350 pounds, ensuring the stability of the umbrella. Also, the easy-to-fill filling ports can help you fill quickly without wasting time. The concave handle on each plate are also easy to move and store. And unique octagon appearance adds elegance to your outdoor space, perfect for patio, garden, courtyard, porch, and poolside. Color: Black. Material: Plastic.