... Screen Printing Pin Badge, Pin Badge, Lapel Pin Lapel Pin, Pin Badge, Die Struck Pin, EmblemMaterial: Brass, copper, zinc alloy, aluminum ... , iron, pewter, stainless steel,Sizes & Thickness: Customized / OEM designs are availableColors: soft enamel, imitation hard enamel, and without coloringProcess: silkscreen printing ... or offset printing, 4-color ...