Set one ball kit on the vehicle hitch forward and the other on the trailer hitch behind the receiver. Then dirve back up until the balls touch.
Trailer Alignment Kit With Magnet Hitch Line Up is aligning hitch with the trailers for Boats, Campers, RVs and Trailers. Quickly and Easily connect your trailer. 12-1/2" minimum height, chrome plated finish to resist rust. Telescoping rods extend to 42" When the brightly colored markers are aligned.