Hummer H3 Ventvisors. The Slim Line style visors install using double sided tape, allowing them to be installed and ready to go in just minutes. Their high-impact acrylic construction guarantees years of trouble free use and exceptional durability. The aerodynamic shape conforms exactly to the contours of your vehicle, allowing you to crack your windows open in any weather, letting a cool breeze in and keeping the rain and harsh weather out. They also protect your interior by shading it from the hot sun and minimize wind noise at highway speeds. All visors come with a Lifetime warranty.