... injection:imitation hard enamel size:according to client's inquiry cufflinks for mens Materialzinc alloy,brass,iron,stainless iron,aluminum etcProcessDie ... Etched, Soft enamel, Cloisonne, Imitation Cloisonne, offset printed.Platinggold,antique gold,,silver,antique silver,bronze,antique bronze,copper,antique copper,nickle ... , and we can make the design for you as well. Fashion cufflinks for mens