Stretch cool shade over long dining tables or poolside lounge sets with this 13 ft double sided umbrella designed for generous coverage. A vented top releases trapped heat and invites airflow, keeping everyone comfortable beneath the twin canopy even on warm afternoons. The smooth crank lift raises both sides in seconds, and a reinforced twelve-rib frame locks to the included cross base for dependable, wobble-free support. Fill the twin sandbags with up to 66 lb of ballast to add wind resista...