... : stamped,zinc alloy injection,photo-etched,offset print,silk screen print,laser engrave.Plating :nickel,gold,brass,chrome,bronze, ... anti-nickel.Material :zinc alloy,iron,brass ,copper,aluminum,soft pvc.stainless iron.Attachment:safety pin,pin with clutch,ball ... chain,magnet,ribbon,dog snap.Packing:polybag,card,box,opp adhesive ploybag,plastic blister,bubble bag soft enamel lapel pin