Large Patio Umbrella"Heavy Duty 10Ft diameter water resistant and UV protected Parasol with air vented top 100% polyester 250gsm fabric is much thicker and durable than normal 180g m""It is color fastnessed to European Standard Level 4,last for 1000 hours,about 2 years Rust free powder coated 1. 8 Inch thick aluminum pole,eight heavy duty ribs support the umbrella shade ""With easy crank and cantilever operation mechanism for smooth opening and closing Cross base