An enamel pin is a metal lapel pin with some kind of decorative enamel on it. The pins can be made of copper, bronze, iron, aluminum, etc. They are polished smooth and then the recessed areas of your design are filled with various types of enamel for decoration. The available enamel colors include hard enamel, soft cloisonné or soft enamel. The soft enamel pins can be covered with epoxy dome for protection. There are various rust proof plating colors available for customization, like shiny gold, antique copper, black nickel, modern rainbow and so on. Enamel pins are ideal for promotion or souvenirs contributing to the high cost-effective feature.