Yescom 16.5' Triangle Sun Shade Sail Patio Deck Beach Garden Yard Outdoor Canopy Cover Uv Blocking (Blue) 185g/sqm knitted high-density polyethylene fabric Environmental temperature below the shading sail can be lowered up 6.5 degrees centigrade Rust-proof fixing system - Galvanized iron tension rings Heavy-duty carabiners and durable nylon ropes as Free Gifts Overall Size (with Tension Rings): 16-1/2' x 16-1/2' x 16-1/2'