C-HOPETREE round resin umbrella base stands are the perfect accessory to complete your outdoor patio umbrella package. Manufactured from a durable resin stone composite material for maximum outdoor endurance. This umbrella base is sturdy and compact with a contemporary design and finish. You are sure to enjoy relaxing times in the garden or pool deck with this functional C-HOPETREE umbrella base.SPECIFICATIONS AND SPECIAL FEATURES · Diameter - 21.1 inch (53.5cm) · Material - Resin stone composite · Stem diameter (internal) - 2.1 inches (53mm) approximately · Weight - 40 lbs(18kg) approximately · Color - Bronze · Includes - Adjustable tension screw and 2 pole diameter reducers 1.5" (38mm) and 1.9" (48mm)IMPORTANT INFORMATIONThis base is suitable for Patio Umbrellas up to 11 ft when being used through a table