Patio Umbrella Base 23" Diameter Round Heavy Duty Outdoor Stand Plastic Water and Sand Filled

100 pound weight. Fill with sand, then add water to achieve the 100 lb weight needed to secure the patio umbrella. Simply remove the cover from the top of the umbrella to fill, sand is not included. Made of fade resistant PE plastic, this patio umbrella base is also weather resistant and easy to clean. The base is equipped with its wobbly plastic parts inside to prevent it from wobbling and has two screw knobs to tighten the pole to the neck of the patio umbrella stand. 23 "D x 16.33 "H, designed for patio umbrellas up to 11 feet wide.