Slickblue Fillable Patio Umbrella Base with Handle Fit 1.5 Inch Umbrella Poles-Black - Black
From Macy's
The fillable umbrella base is designed with a large reservoir that can be filled with 5.2 Gal water, 51 lbs sand, or 66 lbs sand and water, keeping your umbrella upright during windy conditions. And we recommend using water and sand together to make it heavier.