Fits most pole sizes: This patio umbrella base is suitable for market parasol poles with diameters of 38mm to 48mm. Equipped with two adjustable fixing knobs on the pole to keep your sun umbrellas upright and in place, even if your umbrella poles can't exactly match.Fillable design: Our patio umbrella stand weighs up to 43 kg when filled with water and 60 kg when filled with sand. You can also fill with dry sand and then add water to increase the weight. The large capacity makes the umbrella base can hold some large market umbrella. Fill port on the side makes base easy to fill and clean.High mobility: Features two universal wheels and two wheels with brakes, allowing you to transport your umbrella wherever you need shade.Selected material: This outdoor umbrella stand ?is made of PE plastic and metal pole with powder coating for stability and durability, suitable for outdoor use.Overall dimension: 54.5L x 54.5W x 48H cm, Steel pole size: ?5.6 x 44.5H cm. Suitable Outsunny parasol parent SKUs: X-84D-031, X-84D-106, please consult customer service for product links if you need. Easy assembly required.