Strong and durable: The umbrella frame uses structural mechanics, and uses 6 structural steel and carbon fiber composite structures to form a stable frame. It is flexible and strong, stable and wind-resistant. High-elastic springs are added at the folding part of the umbrella ribs to effectively improve the opening and closing efficiency of the umbrella surface. Waterproof: The inside of the umbrella is black glue, and the outside is printed with exclusive patterns, which can effectively block ultraviolet rays and prevent sunburn. When the umbrella is opened and used, the rain will slide naturally. After use, shake it lightly, and the water droplets will immediately leave the umbrella surface. It is highly water-resistant and has a significant dry effect, which extends the service life of the umbrella. Easy to carry: Nanotechnology is used on the ordinary umbrella surface to prevent lotus leaf water resistance, forming a waterproof fabric, which effectively blocks rainwater from infiltrating. The five-fold umbrella is more compact and convenient for travel or shopping. Ideal gift: With a stylish appearance and a variety of bright colors for you to choose from, this umbrella is an ideal gift for family, friends and colleagues! After Sales Service: 5-star warranty, 30-day full refund guarantee. If for some reason you are not satisfied with our products, please feel free to contact us. We will exchange it or give you a full refund.