These things are too cool. If your towing needs include more than one ball size, then look into Convert-A-Ball. Push in the dimple on the ball and the locking rod slides out. Remove the ball and replace it with one of another size. It's that easy! Available in Chrome or Stainless Steel * 1" chromed shank for 1 7/8" 2" and 2 5/16" balls rated 10,000 lbs. * 3/4" chromed shank for 1 7/8" and 2" balls rated 3,500 lbs. * 3/4" stainless steel for 1 7/8" and 2" balls rated 5,000 lbs. * 1" stainless steel shank rated 10,000 lbs.