42 x 8K Three Fold Auto Vinyl Umbrella T Umbrella Beach Front Automatic Tri Fold Black Rubber Umbrella (Outside Printing)Polyester Outdoor Custom Print Automatic Folding Garden Patio Beach Umbrella for Custom Promotion Gift Plain Rain Black Sunscreen Vinyl Automatic UV Sun Three Fold Auto Rain Umbrellas Three Fold Auto Umbrella Jet Black. Material Description] Beach Front Automatic Tri Fold Black Rubber Umbrella (Outside Printing)Polyester Product performanceumbrella skeleton using structural mechanics, the use of 8 structural steel and carbon fiber composite structure composed of a solid umbrella skeleton frame, flexible and sturdy, stable wind resistance, umbrella bone folding add high elastic spring, effectively enhance the efficiency of the umbrella opening and closing. Umbrella propped open to use, rainwater natural slip, lightly shaken after use, water droplets immediately leave the umbrella surface, strong water resistance, dry effect is obvious, extend the service life of the umbrella, the use of nanotechnology processing on the ordinary umbrella, anti holistic anti water effect, the formation of anti water fabric, effectively blocking rain infiltration. Lightweight along with the skin to resist photo aging, efficient insulation, and resist ultraviolet rays. Applicable scenario Portable and lightweight: Now you don't need to choose large and small umbrellas that can't provide practical wind protection. Folding automatic umbrella length of only 11 inches, can be placed in briefcases, backpacks, luggage, etc. Suitable for outdoor activities umbrella, such as travel, shopping, etc. Accessory constructionReinforced windproof frame: stretcher and shaft made of extra thick hardened metal, reinforcing the canopy and keeping it tight to ensure it won't flip over in strong winds. Special noteThis size data due to different measurement methods, the error within 0. 8inch is normal. NoteThe product is made on demand, one piece is ordered, multiple shipping routes are available, and the cost varies depending on time efficiency.