Deluxe 9ft Pool Side Patio Offset Market Umbrella Outdoor Furniture - Red Heavy duty thicken aluminum pole with powder coated finish. Tilt system for more desired angles of shading 9'x9' square umbrella canopy can offer larger shady area than 9' diameter octagonal umbrellas. Crank handle for convenient folding and unfolding Double protection for ribs with rib tip cover and thickened bag to assure stability and best stretch