Soft enamel kaychains are the most popular keychain choice. Recessed metal are infilled with bright and colorful soft enamels. The enamels are lower than the raised metal rim. Epoxy are avaiable to cover the surface to make it more smooth and durable. The metal bases are available in gold, silver, copper, dye black, and could be anqitued or sandblasted. Various kinds of attachments including keyrings are available.