Generator Boxes, Inc. - Travel Trailer Adapter Bracket And Adjustable Base Plate Kit (Generaor Storage Box)

Great mount that is easy to install on a bumper. Make sure you reinforce the bumper though. Only works efficiently with the generator box it was designed for, but it holds it dead steady, and it will not budge unless the bumper falls off! Will definitely buy again at a later date, but the price is prohibitive enough that I must wait to do so.