● Weather-proof Material: Constructed of all HDPE material, the square umbrella base is resistant to various weather conditions to support long lifespan. Besides, the premium material is rugged enough to endure strong impact.
● Detachable and Stackable Plates: The four 20 "x 20" plates come with holes for you to insert locking pins (not included). Therefore, you can lock the four plates tightly to obtain a perfect cantilever umbrella base. When not in use, they could be stacked for space-saving storage.
● Easy to Fill Spout: : Built-in spout makes it easy to fill or empty the heavy umbrella seat simply by unscrewing the umbrella cover. Besides, the spot and screw cap will form a sealed environment to prevent water leakage during use.
● Large Filling Capacity: Each plate can be filled with 3.4 gal water or 5.2 gal sand to add weight of the base. Therefore, the heavy duty base can provide powerful support for your cantilever offset umbrella in windy conditions.
● Portable and Lightweight Design: When not filled with weighted items, each plate only weighs 4.5 lbs, allowing you carry them with ease. Besides, the 4pcs umbrella base comes with handle to help you transport it to garden, yard, poolside effortlessly.