[glatt]

It attaches to the tow hook, apparently.

Edit: It's a neat design. But $70 plus S/H is a little pricey. That one machined piece that screws into the tow hook receptacle is the one that would make doing it yourself a challenge. I didn't realize that newer cars have this tow hook receptacle instead of an actual hook. Driving around in my 14 year old car with its old technology has made me ignorant.