Screw-In Pole Design: The 1.5 inch diameter heavy duty iron pole has a convenient easy and smooth screw-in pole design with built-in rounded threads that make rotating the 7.5 foot outdoor umbrella much easier. The Iron pole and steel ribs are powder coated in an Antique Bronze finish for rust resistance..Reinforced End Screw Design: This feature built on each rib helps protect the umbrella from breaking if it falls over. It also helps keep the surface of the umbrella canopy more sturdy and secure to each of the 6 ribs and will help rain to quickly drain from the umbrella.The canopy is vented to allow air flow and to give the umbrella more stability, giving it more wind resistance..Durable Easy Clip System: Now closing and securing the 7.5 ft. market umbrella is easier than ever with this new easy clip sytem. No more ties to tie or velcro that does not hold..Easy to use: The easy-to-use crank sytem makes it easy to raise and lower the canopy. The push button tilt technology also makes tilting the umbrella effortless so that you can enjoy shade at any angle with this 7.5 ft patio umbrella outdoor..Vented Canopy: Designed to facilitate air flow and prevent inversion in windy climates; Search B00SUU7V1I, B00SUUCE3S, B01DLGTFBO or B06XKQR5Q8 to get the matched umbrella base. Do not forget to put down or store away your umbrella before windy or stormy days.