The TRZ8AL is an 8 drop hitch with rear locking ball mount and a keyed alike receiver lock all constructed from ultra strong 100 percent polished solid aluminum. Ball mount easily adjusts to up or down in 1 increments. Provides up to 8 inches of rise or 8 inches of drop. Includes 2 and 2 5/16 hitch balls. Weight tested to 10,000 lbs tow weight and 1,500 lbs tongue weight.