The Sunnydaze Decor 17 in. Round Cast Iron Umbrella Base Stand ensures that most patio umbrellas will stay safely fixed in place. Each 24-pound base comes with a special adapter that can adjust to hold umbrellas with a 1.5 in. diameter, 1.625 in. diameter and 2 in. diameters and can be placed under a patio table with a through-table umbrella hole. This elegant umbrella base is made from cast iron material ensuring it lasts for years of use and enjoyment. This universal base will be a wonderful patio accent and provides a great addition to many different styles of outdoor decor.