DURABLE POLYESTER FABRIC: Water-, mildew-, UV-, and fade-resistant spun polyester fabric keeps your umbrella looking great all seasonEASY OPEN/CLOSE CRANK: A simple hand crank helps to make opening and closing the umbrella a breezeRUST-RESISTANT FINISH: The ribs and pole are coated in a protective, rust-resistant powder finish, making it ideal for the outdoorsSINGLE WIND VENT: Allows additional cooling by increasing airflow throughout the umbrellaCOMPATIBLE BASES: Search SKY3765 or SKY3784 for round bases that go well with tables. Search SKY5070 for an 81-pound rolling base.COMPATIBLE BASE: