These deflectors are Tape-on type, it should be glued to the door frame (or body for a car without a door frame) from the outside with double-sided tape. High-quality, durable Door Side 4-Piece Car Ventvisor set will make sure no rain, sun or snow get into your car though you are having enough fresh air coming through the rolled down window. Wind Deflector compatible with: BMW 3-Series. E46 4 IV Coupe 1999 2000 2001 2002 2003 2004 2005 2006. HIGH-QUALITY – Due to high quality strong Acrylic plastic and perfect double-sided adhesive tape these Wind Visor Deflectors will serve you well for a long time no matter if you drive in town or off-road. GREAT PROTECTION – Air Guard Window Deflectors will support your car with a great Protection Against Snow, Sun and Rain letting you roll down windows whenever you need the fresh air to get inside. EASY INSTALLATION – 4-Piece Car Ventvisor set is really easy and fast to install using the adhesive tape and step by step thoroughly following the installation instructions. NO NOISE – Window Deflectors are the classic must-have accessories which will let you have fresh air, defogged glass and cooler cabin temperatures with no noise and loud, obnoxious wind coming through. The high quality side window deflectors are made of strong Acrylic plastic and will serve you long. Wind Visor Deflectors are strongly glued to the windows with the help of double-sided adhesive tape letting you drive off-road with no worries. Durable Window Air Guard Deflectors are perfect for Protection Against Snow, Sun and Rain. 4 x Window Deflectors 1 x 3M Double-sided Adhesive Tape. The work should be performed at temperature above zero. You should avoid using car polishes and abrasives agents.