Sturdy metal frame: The Pool Table Cantilever Patio Umbrella has a strong iron structure with heavy-duty-oriented but weight, which is ideal for long-term use of outdoor. There are eight ribs to control the canopy, which is connected to the core rod, and the guide umbrella opens and closes smoothly. High-strength fabrics: It is made of waterproof, anti-fading and sunscreen polyester fibers, high strength, difficult to break. There are 8 openable windows that provide better air circulation without affecting any sunscreen area, which does not fade long.