Life-Sport Auto Open/Auto Close Windproof Travel Umbrella with 10-Rib for Men/Women Business-Heavy Duty,Uv Protection,Compact fabric Durable:Made with a pure steel shaft, sturdy aluminum ribs, and ultra-durable fiberglass constructions. Fast auto open and close:One Second One Hand Operation. Protection:Made frome density waterproof PG fabrics and SPF&gt;40+ Wind resistant frame systems:Having An Umbrella Whenever You Go Prevents Yourself Being Caught In Unexpected Rain And Wind. Made from high density satin,give your a more smooth surface