This Grosfillex US6006 is a 35 lb. umbrella base. It is specifically designed to hold a table umbrella. This umbrella base is made from 35 lb. cement-filled resin, keeping a sturdy base to ensure your umbrella stays in place. Molded anchor bolt holes secure the base to the deck for extra stability. The base features a long, reinforced stem with two thumb screws specifically designed for any umbrella with a 11⁄2" pole. This base will not rust or mar your deck. It is UV resistant and easy to clean with soap and water. Available in Black, White, Sand or Bronze colors.