✔�Fit Cantilever Umbrellas】 This patio umbrella base is 33.86 '''' L x 33.46 '''' W x 7.87 '''' H, which is suitable for most cantilever umbrellas ranging from 9-13ft with a rotation size of 6.3''''. Notice: Please ensure your umbrella rotation size is 6.3" according to the size picture.✔�Movable Umbrella Stand】 Made with 8 wheels to move your umbrella anywhere in your yard, patio, or garden, and bottom grooves are easy to grip while moving.✔�Durable Umbrella Base】 Made of HDPE plastic for weather resistance, UV resistance, and longevity to last many years. Enough weight to help you enjoy your patio umbrella and your umbrella table.✔�High Weight Capacity】Water and sand can both be injected, about 260lb with fully injected. We recommend filling it with at least 50% sand and the rest with water for the firm support of your patio offset umbrella.✔�Stylish Design】 Finished 3D surface design in black, shaped in square, this umbrella base seamlessly complements most outdoor decor and won''t detract from your patio or garden.✔�Already Assembled Base】No need for assembly. there are 2 inlets on the top for filling with water/sand, and 2 outlets on the side for draining the filling.