... :1-5mm 4.Plating:nickel,anti-nickel,black nickel,brass,anti-brass,copper,anti-copper,gold,anti-gold,silver,anti-silver,chrome,dyed black ... stickers & epoxy ,souvenir keychains,etc 7.Material:Iron,brass,zinc alloy,gold,silver,brass,iron,stainless steel/iron,aluminum alloy,soft PVC ...