The TRZ4AL-RP is a 4" drop hitch with pin and clip constructed of 100 percent aluminum. It adjusts in 1" increments and includes a 2" and 2 5/16" dual tow ball. Weight tested to 10,000 lbs tow weight and 1,500 lbs tongue weight. Easy to install and adjusts in seconds from 0"-6" drop or rise.