1) Materials: Brass, zinc alloy, stainless steel, iron, aluminum. 2) Plating: Gold, anti-gold, silver, anti-silver, nickel, anti-nickel, black nickel, brass, anti-brass, copper, anti-copper, dyed black. 3) Processing: Stamped, photo etching, injection. 4) Logo: Offset, silk print, coloring, soft enamel, laser printing. 5) Various thicknesses are available. 6) Various attachments available. 7) Color reference: Pantone color chart.