Umbrella bases Aluminum Deck Plate Cantilever Deck Plate In-Ground Umbrella Base Mount for Atlantic Cantilever Umbrella Round Umbrella Base Filled with Concrete Round Umbrella Base Filled with Concrete-Extra Heavy Round Umbrella Base with Wheels and Filled with Concrete Round Umbrella Base with Wheels and Filled with Concrete – Extra Heavy Specialty 1/4 Base for Atlantic Cantilever Umbrella Square Umbrella Base with Wheels and Filled with Concrete Square Umbrella Base with Wheels and Filled with Concrete