This hard umbrella base weight will be a great choice that can be perfectly fixed for your outdoor umbrellas. Constructed of durable PE material and excellent blow molding technology, it could ensure weather resistance and lasting quality. Four plates are connected by 4 galvanized pins, and the sturdy 4-plate structure makes the disassembly and storage much easier. What's more, you can fill it with sand and water to improve the stability of the umbrella. Besides, the easy-to-fill large 1.5-inch water injection spouts enable you to fill quickly and save time. The concave handle on each plate makes the umbrella base easy to move. Likewise, the simple black appearance will add elegance to your outdoor space, which is perfect for the patio, garden, courtyard, porch, and poolside.