This 4-piece outdoor cantilever offset patio umbrella base provides a stable and reliable foundation for your 9 ft. cantilever umbrella. Constructed from premium HDPE material, each plate is durable, crack-resistant, and designed to withstand outdoor conditions season after season. The four interlocking plates form a circular base measuring 38 in. x 38 in. overall and 2.5 in. thick for a low-profile, space-saving footprint. Each plate can be filled with up to 4.4 gallons of sand or 3 gallons of water, allowing you to customize the total weight for superior stability in windy conditions. Integrated spouts make filling and emptying quick and easy, while hidden handles let you move the empty plates with minimal effort. The textured, decorative surface and circulation grooves add both friction and visual appeal, helping to keep the base securely in place on your patio or deck. When not in use, the four plates stack neatly for compact storage and convenient transport, making this base an ideal solution for residential patios, poolside lounging areas, and other outdoor living spaces. This versatile weighted umbrella base also serves as an ideal market umbrella base and deck umbrella stand, making it a practical addition to any outdoor setting. Whether you need a umbrella base weighted, this option delivers quality construction and dependable performance. Color: Black HDPE base plates with textured decorative pattern. Material: HDPE (High Density Polyethylene).