These lower window chrome garnishes are made out of stainless steel material with a triple-layer chrome finish. Purpose to the install this chrome garnish trim is to enhance the car side profile look and add some metal finish look to the vehicle. Installation is very easy, double-sided tape is attached on the backside of each piece so that you can install it by yourself, but professional installation would be preferred for the best result. Do not wash your car for 3-4 days after the installation of this garnish.