Now you can transport your Porsche safely and easily without risking damage to the paint or undercarriage. The tri-pod lugnut tie down system uses four extension plates with integral tie-down loops that bolt to your wheels via three hardened bolts. Cnc-machined lug extensions protect your wheels from damage, and high-strength 1018 heliarced steel construction ensures maximum strength and durability. The plates bolt to any 911 with 5-lug wheels, including Boxster and 996 's and provide the safest easiest way to tow your Porsche on the market today