... brass process:die struck injection:imitation hard enamel size:according to client's inquiry enamel cufflinks Materialzinc alloy,brass,iron,stainless iron ... aluminum etcProcessDie struck, Die cast, Stamped, Photo Etched, Soft enamel, Cloisonne, Imitation Cloisonne, offset printed.Platinggold,antique gold,,silver,antique silver,bronze,antique ... can make the design for you as well. metal enamel cufflinks