The weather outside sometimes prevents you from doing it. This umbrella has excellent materials and quality, and its waterproof and ultraviolet that you don't have to worry about bad weather preventing you from chatting outside. The extra large double-sided design also matches your desk and chair and provides more shade area. You can easily use the crank to turn it on or off which is not only labor-saving but also safe. When you are not using it, the umbrella cloth has a rope that holds the umbrella cloth well. Vents give you more coolness and safety because it allow air flow and reduce wind pressure. Simple assembly is required.Features:The ribbon on the umbrella can easily wraps around the closed umbrella Shading umbrella for garden, hotel, market, saloon, by pool side or on the beach Vents are designed to allow air flow and reduce wind pressure Simple assembly without tools gives you more convenience.