GoToTags NFC Tag - Bubble Stickers - NXP NTAG203 - 30 mm Circle - 10 Pack Includes 10 NFC bubble stickers with the GoToTags NFC symbol in blue on a white background 30 mm (1.18 in.) circle stickers with 3M adhesive backing Waterproof PVC housing and shiny epoxy cover protec the NFC chip inside 137 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