MkI tail lamps each have a set of heavy rubber foam gaskets. One between the lens and the chrome base, a similar one between the base and the body. Since they are exposed to the sun and easily visible, faded or rotted gaskets can ruin the look of the whole car! This kit includes one of each gasket, two kits required per car. If the special mounting screws are damaged or missing see screw kit 47H5360.