Fiberglass frame .AUTO OPEN AND CLOSE: The umbrella has an automatic opening and automatic closing mechanism, one hand operation, just press the button once, automatically open and press again, and immediately fold the umbrella to close. One-handed operation keeps you dry when you are too busy .PREMIUM MATERIAL: The umbrella is made of premium material, special coating and non-slip rubber handle make it better than other compact umbrellas. Our handle is also balanced to allow for the most comfortable use possible .WINDPROOF STRUCTURE: The strong umbrella has windproof structure, our umbrella is made of 8 reinforced fiberglass ribs, which means that the umbrella does not break in strong wind. So dont worry about the weight reduction of this umbrell .PORTABILITY: This outstanding umbrella is the perfect combination of portability, protection and durability. Small enough to fit into your backpack, luggage, car and more. The mini, portable and foldable design is perfect for men, women, teenager and children