This heavy-duty base keeps outdoor umbrellas from flying off into the sunset with every passing gust of wind! Each base anchors a freestanding or table umbrella, with a concrete center and a steel shell that resists the wear and tear of the elements. The base compliments existing patio d cor with its attractive neutral colors and is a sturdy 50 lbs to better secure umbrellas up to 9 feet in diameter! Product Features 50 lb umbrella base Powder-coated steel shell Concrete center for added weight Compatible with both freestanding and table umbrellas Designed to securely hold up to a 9-foot umbrella Pole opening size: 1.75"