Premium Material & Sturdy Frame: Made of high quality steel, our patio umbrella base features great durability, which will not crack or deform easily. Rolling Casters for Easy Movement: Equipped with 2 flexible wheels, this umbrella base can be moved anywhere you want without effort. Moreover, there is a handle for convenient carry and transport. With thickness less than 1, the umbrella base can be placed below your patio table. 2 Hand Tightening Knobs: Designed with 2 hand-turn knobs in the steel pipe, the stable umbrella base can keep the umbrella securely fastened even on windy days. Multifunctional Umbrella Base: This modern umbrella base with concise lines fits into any decor, which can be used for outdoor places like gardens, patios, balcony, backyard and so on. Whats more, it can perfectly fit umbrella poles with 1.4/ 1.5/ 1.9 diameter.