DNA MOTORING WVS-148 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 (non-in-channel visor)