This heavy-duty umbrella base is a must-have for any outdoor setting, providing reliable and stable support for your patio umbrellas. Designed with a sturdy four-plate construction, it can be filled with up to 42 pounds of sand or 11.3 liters of water per piece, ensuring maximum stability even in windy conditions. The detachable square weight plates are perfect for most types of cantilever offset patio umbrellas, offering a versatile and secure solution. Each plate features a fill spout and a twist cap, making it easy to fill and seal the base, preventing leaks and ensuring a water-tight seal. Made from durable PE plastic, the base is resistant to cracks, UV rays, and other outdoor elements, ensuring long-lasting performance. Its weather-resistant design makes it an ideal choice for any outdoor environment, whether it's a backyard, poolside, or commercial setting. With its combination of stability, durability, and ease of use, this umbrella base is the perfect addition to any outdoor space, providing peace of mind and a stylish, functional solution for your patio needs.