Metal Badge,Button Pins 1,Manufacturer 2,Size:25*25*1.5mm 3,Material:Brass,Iron,Alloy,ect /Plating:gold,Silver 5,Low price Metal Badge,Button Pins,Process: Various depending on the design Material: Brass, zinc alloy, iron, cooper, etc. Size: 22*22*1.5mm can be more large or smaller if clients need. Plating: Gold / Antique Gold / Silver / Antique Silver / Nickel / Black Nickel / Antique Nickel / ...