Size: 35.91 × 35.04 × 6.85 inches; The suggestion is to add 73.4 lbs of sand and 66.8 lbs of water on one side of the base; Must be filled with sand; The other side is the same Compatibility: Cross base NOT included; not applicable to the PURPLE LEAF Double Top Cantilever Umbrella Material: The material is made of heavy-duty plastic; making it more sturdy; while also being UV and water-repellent Fashion: The surface features a 3D design; making it even more stylish Help: If you encounter any issues or require missing parts while using the product; please reach out to us for assistance Applicable: Suitable for PURPLE LEAF Single Top Cantilever Umbrellas; especially for 9' x 11', 10' x 10' With this base, your cantilever umbrella will be even more stable. This offset umbrella base is made of HDPE, strong and weather-resistant, ensuring durability and a long lifespan. It can be filled with both water and sand, specifically designed for the purple leaf outdoor umbrella, enhancing your outdoor living experience with added comfort and enjoyment.