... and welcome to contact us. - Technics: Carved, casting, painted, plated, polished, welding, etc.- Material: Zinc alloy, Copper, Iron, ... etc.- Diameter:19mm, depending on the size of design - Plating: Gold / Antique Gold / Silver / Antique Silver / Nickel / Black Nickel / Antique ... / Brass / Antique Brass/Dyed Black /Pearl Silver/Pearl Gold/Pearl Nickel/Chrome/Double Plating- Usage:Gifts, crafts, or ...