A small strain relief for my Griffin FM transmitter that plugs into my iPod. Years of use in the car was causing the wire to pull free from the iPod plug. This strain relief will help to keep the wire from breaking. I used Solidworks and included the original file. Print two halves and glue them together around the ipod connector. I sized this part to fit on the Griffin FM transmitter, so if you choose to use it with a regular Apple iPod connector, you may have to adjust the size or make modifications. Your mileage will will vary.