... alloy it can be made follow client's demand Metal cufflinks with custom design 1. Material:zinc alloy,copper,brass,bronze,silver ... bag 2. Mold part :die cast,die struck Color part:enamel,paint Print part:silkscreen,offset printing Other craft:epoxy,matt ... etching.3.USage: Award,businee,souvenir,meeting,promotion,clebratation. Metal cufflinks with custom design