GoToTags Security Token - NTAG213 - White - 30 mm Circle - 10 Pack - NFC Tag Includes 10 white NFC dome sticker tokens with the GoToTags NFC symbol 30 mm (1.18 in.) circle dome on-metal sticky tokens with 3M adhesive backing Waterproof PVC housing and shiny epoxy cover protect the NFC chip and allow for outdoor use 144 usable bytes of data; suitable for a url, text, small contact record or single action phone trigger Compatible with all GoToTags software and NFC-enabled phones