1Applicable Model: Roof rack grommet plug cap is fit for Transit Connect 20122022 , please confirm whether your model is applicable before buying. 2Function: These plug covers fill the holes in the top of the vehicle and protects the roof rack system of the vehicle from dust, moisture and other contaminants entering vehicle interior. 3Waterproof Seal: The plug cover is equipped with a foam washer to provide a waterproof seal that effectively prevents moisture and debris from entering the top hole of the vehicle. 4Anticorrosion: Roof rack grommet plug cap are made of plastic materials that are durable and corrosion resistant, and can be used for a long time and withstand different weather conditions. 5Easy Installation: The plug cover is designed to meet original equipment manufacturing standards, so it can be easily installed on the roof rack, ensuring good connection and stability.