Easy Mobility: The wheeled patio umbrella base is equipped with four 360-degree swivel wheels that can be easily moved in all directions and the base can adjust the height easily by crank, revealing the wheels for mobility Enhanced Stability: The base with 4 water tanks provides a more even center of gravity and better stability compared to others that only have one water tank Product Dimension: 35.4 X 35.4 X 7.9 inches. Water and sand can both be injected, the total weight is about 353 lbs with fully injected Premium PP Material for Durability: Made from high-quality PP plastic, designed for long-lasting durability and strength Universal Compatibility: Suitable for PURPLE LEAF 10'round, 11'round, 12'round, 13'round,8'X 8', 9'X 9', 10'X 10',11'X 11'，12'X 12'，9'X 11', 9'X 12', 10'X 12',10'X 13'cantilever umbrella PURPLE LEAF wheels patio umbrella base can rotate 360 degrees easily with 4 wheels