Our range of plastic discs and tokens. They are very robust and used a great deal for NFC asset management, security and tracking. All our NFC tags have a sticky back surface and made with very strong ABS, PPS or PA6 plastic. Some have a hole in the middle so they can be attached using a screw or nail to an item or for looping through a metal cable. They are all suitable for using on metal surfaces as well as any other.