I have the Pair of Felts for the Back Seat Bottom Support Rail for Beetles. $10.00. These came from a '67 Seat Support Rail but they must extend to earlier years (to later years?) The Felts fit into the Support Rail and are affixed in place using an adhesive. When the Back Seat Bottom is installed, the front bottom edge rests upon these Felts. Hopefully the photos will illustrate this. Two Felts per Rail. Contact Jay for details.