car interior door handle cover A car interior door handle cover is a protective or decorative cover that is placed over the door handle on the inside of a car door. It is usually made of plastic or rubber and is designed to protect the handle from scratches, scuffs, and other damage. Some covers are also designed to add a decorative touch to the interior of the car. They come in a variety of colors and styles to match the interior of the car and can be easily installed and removed.