Use this outdoor umbrella over your picnic table or lawn furniture to shelter guests or family from the sun. The polyester fabric cover features a sturdy black aluminum frame and a double wind vent for increased stability on windy days.Outdoor umbrella with black aluminum frame and blue polyester fabric coverDouble wind vent offers increased stabilityDeluxe crank lift with collar tilt for easy positioningAssembly required Measures 11 feet in diameter x 9.5 feet high