Tow Hitch

Tow Hitch - http://en.wikipedia.org/wiki/Tow_hitch

   Class I – up to 2,000 pounds (910 kg) – light loads
   Class II – up to 3,500 pounds (1,600 kg) – light loads
   Class III – up to 5,000 pounds (2,300 kg) – larger loads (campers, boats, etc.)
   Class IV – up to 10,000 pounds (4,500 kg) – larger loads (campers, boats, etc.)