Lot of 10 Business Blank Metal Business Card Holders Cases Sublimation heat Transfer Dye Card Holder case is a perfect personalised gift, consisting of metal case each one has an individual gift packing . You can print the image wich you like on the metal board. The operating method of printing such metal is dye sublimation, wich features outstanding printing quality. You can dye-sub any of your potos images and logos on the Surface.