Door shell stopper. Front Upper. Left. Right. A rubber ring with a hole in the center which provides protection through which Door Shell related components pass through. A rubber ring with a hole in the center which provides protection through which Hood Release Handle related components pass through. A rubber ring with a hole in the center which provides protection through which Vent Window related components pass through. Door Plug. Door Shell Seal. Door Stop. Window Regulator Grommet.