When starting up your business, car sign magnets are a valuable tool! These always-in-stock items measure 5 3/4 x 7 1/8 and are approximately 0.035 thick. When used properly, car sign magnets can easily be removed and reused without leaving a residue. With your custom imprint prominently displayed, building brand awareness can be a smooth ride. Remove weekly for surface cleaning. automatically added to every car sign.