Our solid granite patio umbrella base provides a firm, sturdy base to hold your umbrella and prevent it from tipping or being swept away. Made from durable granite and weighing 60 pounds, this umbrella weight plate is extremely stable and allows your parasol to stay still even in windy weather. The umbrella stand has 2 locking bolts to hold the umbrella pole in place. An adapter is included, making the parasol base bracket suitable for parasol poles with a diameter of 38/48mm.