Perfect Partner for Your Patio Umbrella!Our fillable umbrella stand measures 18'' x 18''x 11'' (L x W x H) and the total weight including the base itself is 47 lbs after filling with water, which is suitable for most small patio umbrellas or table umbrellas with 1.5'' pole diameters. And you can fill the reservoir with sand or water (5.2 Gal water, 51 lbs sand, or 66 lbs sand and water) to increase wind resistance and stability. Besides, it is constructed of Sturdy HDPE material, which can resist all weather, ensuring long-term outdoor use.