The NFC keychain is made of epoxy material. This type of NFC epoxy tag use full cover epoxy so very durable to use, the epoxy will not fall out after long time use. We have 50+ different molds for NFC epoxy keychain, any size can be customized like round, rectangular, oval, cantoo shapes etc. We can provide customized logo printing. Different colors are available, and different popular models for options. The google review NFC epoxy tag supports data encoding and laser number printing. The appearance of the NFC epoxy tag is small and exquisite, with a fashionable design. NFC key chain is widely used in door, community access control, identity authentication, parking lot management, attendance management, contactless payment, token, industry, etc.