Designed to mount the 7-pin trailer connector on my Hyundai Santa Cruz's tow bar. This is the part number for the eTrailer hitch (confirmed to work): ITEM #C23WR. This is the part number for the wiring harness (confirmed to work): ITEM #C68JR. I used these brass inserts, just heat it up and press it into the holes. Allows you to easily and securely use bolts to attach the connector to the mount: (E-Z LOK Threaded Insert for 1/4-20 Plastic Tapered Single Blade Brass Threaded Inserts, Pack of 50) I used 1/2" 1/4-20 bolts to attach the connector to the mount. The mount is secured to the hitch using heavy-duty zippers.