... Badge promotion gift specifications:Material: copper,znic alloy,iron Technical: die-casting,stamping,plating,paint,enamel Usage:business gift:decorationLapel pins, soft ... enamel lapel pin, metal badge, metal collar pin, metal emblem ... ,Photoetching,immitation hard enamel/Hard enamelMaterial:Brass badge Optional:Brass,Zinc alloy,Stainless steel,Iron, ...