... can be photo etch, injection, die-casting, die-struck, cut-outs 7. Finish: soft enamel +Ap, also can be hard enamel ... , silver, brass, cooper, antique gold, antique silver9. Attachment: can with pin, clasp, butterfly clutch10. Usage: souvenir, promotion, retailThis series of artworks ... wrist,USB cover and so on . custom metal mouse badge/pin badge