Hitch Ball 50mm, 1-7/8'', 2'' , 2-5/16'' ball size 3/4'', 1'' shrank size chrome finished hitch ballThese parts are used to connect the car and the driven vehicle, which work with the couplers.the size:50mm x 7/8" x 54cmcapacity: 3.5Thave many sizes, we can do according to your requirment of the size of hitch ball 50MM Tow Ball Hitch Ball Australia Standard Passed (RC5311)