Sport a Mastiff License Plate Frame and there is little likelihood you will be followed home. Your declaration of love and ownership is clearly visible on our chrome metal Mastiff License Plate Frame. Measuring 6 x 12 inches, our Mastiff License Plate Frames are suitable for all vehicles, and yours is likely a large one to transport this grand breed. His recorded history includes depictions on Egyptian monuments from 3000 B.C. A License Frame is a simple means of self-expression, so tell the world about this defining part of your life.