Using this trunk hole cover is a breeze. First, make sure the area around the holes on your trunk is clean and dry. Take the cover out of the package and peel off the backing of the 3M adhesive. Align the cover with the holes and press it firmly in place. That's it! It's installed. When it comes to maintenance, just wash it with mild car soap and water whenever you wash your car. Avoid using harsh chemicals as they may damage the color - matched finish. Also, be careful when opening and closing the trunk to prevent accidentally hitting or dislodging the cover.