15FT Large Blue Patio Umbrella with Solar Lights - Durable & Stylish This 15ft patio umbrella features a double-sided design, providing 133 sq ft of shade-perfect for outdoor umbrellas for patio tables and 4-6 person dining sets. Built for durability, this large patio umbrella has a 1.9" powder-coated steel pole and 12 fiberglass ribs, ensuring long-lasting strength. The individually replaceable ribs add extra convenience. Made from waterproof, UV-resistant, and fade-resistant polyester fabric, this blue patio umbrella is built to last. For longevity, close and secure it during strong winds or heavy rain.