The ball is changeable with a hard chrome surface. There are three part numbers with trailer ball capacities of 6,000 lbs., 10,000 lbs. or 12,000 lbs. The Receiver Mount Combo Ball & Pintle Hook is made for 2 IN x 2 IN receiver tubes and fits lunette rings with 2 1/2 IN or 3 IN inside diameter eye. Check out a Hitch Bike Rack
or Cargo Carrier.