The Ark 50mm Tow Ball in Chrome will not just look good, but also do what its designed for. With a 3.5 tonne rating (3500kg) and a shank size of 7/8-inch x 51mm length, it complies to AS4177.2 - 2004 standards. It also comes with a lock washer and nut. If your current ball is looking a bit tired, if you are looking for a spare, or your fitting one for the first time, this is what you want.
3500kg load rating
Shank size 7/8" x 50mm