DNA MOTORING WVS-105 Dark Smoke Vent Window Visor Deflector Rain/Sun Guard, 4 Piece Smoked lens to reduce glare and allows car to be parked with windows vented Reduces wind noise while driving with windows open for fresh air Allows windows to be opened a bit, and not have rain water enter through the opening Installs with included 3m adhesive tape (in-channel style) Color:Smoke Style:In-Channel Materials: Dark Semi-Transparent Acrylic Package Included: 4pc. Set of Side Window Visors 06-11 Chevrolet HHR 5-Door Installs with included 3M adhesive tape. (In-Channel Style) Installation instruction is not included. Professional installer is highly recommended! Don&#039; t you just hate it when you&#039; re driving along in your car, wanting and needing to open your windows for some fresh air because it&#039; s hot and stuffy inside your vehicle, but it&#039; s either raining or snowing outside and an open window means you&#039; ll get wet? A window visor takes care of your problem! A window visor protects you and the interior of your car from wet weather, by deflecting rain, snow, sleet, wind and hail away from the windows of your vehicle, thus allowing you to keep your windows open even in inclement weather. In addition, a window visor reduces wind noise while driving with windows open for fresh air. Our professional technicians do heavy research and development in testing car applications and fitments for our products. We also do rigorous testing on the strength, durability, as well as longevity of the material in order to make sure when the product arrives at the consumers end that its ready to go without worries.