Cantilever patio umbrella is made of heavy duty pole and steel umbrella bones and 8 heavy-duty ribs, light & sturdy. Anti-oxidation spray painted makes it last longer,fabric is made of anti-UV polyester. The patio umbrella surface fade resistant, long lasting,water repellent and easy to clean.Top ventilated cover makes the wind pass through easier.It is easy to use,crank to open and close,with unique handle design, multiple height and angle adjustments.