NFC Tag - Laundry Token - NXP NTAG213 - 20 mm - 10 Pack Includes 10 black NFC laundry tokens 20 mm (0.79 in.) circle token Waterproof PPS material is rated IP 68 and protects the NFC chip inside 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