... 35, φ25,100*15,50*35(mount on metal tag), φ50(mount on metal tag, 50*50., 25*31Othersize will be ... DisgnThickness0.3mm to 0.5mm, 0.5mm-1.0mm (with anti-metal layer)PrintingOffset Printing, Digital Printing,ID Number PrintingJet dot printing ... digital printingMetal Environment(Optional)Enable work on directly adhesive on Metal surfaceChip AlternativeNXP Mifare 1 S50/S70/Plus /Desfire, or ...