The Bertha Double   Patio Umbrella is ideal for backyard, garden, or poolside setups that require   maximum coverage. This behemoth is our shadiest umbrella, with a canopy   spanning 15 feet. Reinforced with a solid steel frame, it has five arms on   each umbrella and two steel center arms that strengthen the large canopy. In   addition, the 2" rust-proof aluminum pole has an easy-open crank to make   opening and closing the double umbrella a breeze. Finally, the UV-resistant   canopy is vented, allowing air to circulate and providing wind resistance. So   chill out under the Berta Double Patio Umbrella, but don't expect a tan.    

•   Double umbrella that extends 15 feet    
•   Solid steel frame   with five durable arms at each end and two steel center arms reinforce the   double-wide umbrella canopy    
•   Supported by a   rust-proof aluminum pole measuring 2" in diameter    
•   UV resistant   polyester canopy resists fading    
•   The easy-open crank   system for effortless opening and closing    
•   Locking pin ensures   the umbrella position stays secure    
•   Vented canopy for   increased airflow and wind resistance    
•   Easy assembly    
•   Umbrella base/weights sold separately.