NTAG215 NFC Sticker Tag it can add the anti-metal layers to make sure that we can scan the nfc chips even the nfc tag is on the metal surfacer. The capacity for  NTAG215 NFC Sticker Tag is 504 bytes, it is enough for customers to encode ulr or any personal information as for a business card. Size and material can be customized, and also support to set up the password and lock the chips to protect the encoding data.