This rectangular market umbrella measures 15' long and 9' wide, so it's just right for providing ample shade over dining tables and larger conversation areas. Three different vents on the polyester canopy help promote circulation, while its UV-protection protects against fading, water, and stains. Numerous solid hues are available, so you can get the perfect vibe going in your backyard. It's held aloft by a steel pole and ribs, and a crank lift makes it easy to open and close. A base and two sandbags are included to keep everything balanced.