These rubber bungs are found on the doors and rear inner side panels on T2 Baywndow vans They are there to protect the interior MDF panel from moisture and also holds the MDF trim clips tight. Supplied as a pack of 25 Bungs (These are the correct narrow bungs, Beetle ones do not fit Baywindow models) The MDF metal clips are also available from the Wolfsburg Restos ebay shop.