... brass, zinc alloy, gold, silver, brass ,iron ,stainless steel/iron ,Aluminum ,alloy , soft PVC and so on.2 ... 3) Design & Logo As your requested4) Plating Nickel, anti-nickel, black nickel, brass, anti-brass, copper, anti-copper, gold ... anti-silver, chrome, Dyed Black , Pearl Gold, Pear Nickel, Double Plating and so on5) Color reference (Pantone ... . Hard enamel pins/clips/badge,Nickel plated finish