This umbrella base combines ease of mobility with robust stability, featuring four smooth-rolling wheels for effortless relocation and sturdy locks for secure parking. It boasts universal compatibility with adjustable knobs that fit umbrella poles of various diameters, ensuring a flexible and secure connection. The spacious filling hole facilitates quick filling with sand or water, up to 123lbs and 88lbs respectively, for exceptional stability and wind resistance. Versatile in application, it's perfect for patios, gardens, courtyards, and swimming pools, while its high-quality, durable Pe construction guarantees wear resistance, deformation prevention, and a long-lasting lifespan.