DNA MOTORING WVS-230 Vent Window Visor Deflector Rain/Sun Guard, Dark Smoke, 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)