Photo etched lapel pins are very suitable for the complex or large designs with kinds of details. The image of design will be transferred from photographic negative onto the surface of a metal sheet. To guarantee a long lasting time, the designs are etched into the metal by the acid-reaction process. After that, all of the acids and impurities should be removed carefully. Next, etched lapel pins will be cut out from the metal sheet in the shape as required, then polished and plated. Enamels are filled into the indentations created by the acid etching process using different sized syringes. The lapel pins is then fired at 450 degree for about 15 minutes to get attached and stable colors.