Promotional Soft Enamel KeychainMaterial option: bronze, iron, aluminum, stainless steel, zinc alloy or pewter. Process: die struck, die case, spin cast, photo frame, printed. Color: cloisonne, soft cloisonne, soft enamel, without coloring or printed ink with epoxy. Finish: gold, silver, nickel, chrome, satin, etc. Attachment: ring, lobster clip, swivel ring, etc.