Puzzle lapel pins Available material: Brass, iron, aluminum, stainless steel, zinc alloy, pewter Our die struck brass lapel pins are produced using Cloisonne ... .Available material: Brass, iron, aluminum, stainless steel, zinc alloy, pewterProcess: Die struck, cast, etch, print with enamel, cloisonne colors or ink ... are highly welcomeMore than 28 years of OEM experience Metal Puzzle Pins