For VW Jetta A4 Mk4 Typ 1J 4pcs Window Deflector Rain Guard +35" Sun Roof Visor (Dark Smoke) Made of high quality acrylic 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)