HECERE Waterproof Ceramic NFC Ring, NFC Forum Type 2 215 496 bytes Chip Universal for Mobile Phone, All-round Sensing Technology Wearable Smart Ring, Wide Surface Fasion Ring for Men or Women https://www.amazon.com/dp/B0916HHSQ4/ref=cm_sw_r_apan_i_YP58DRKAYW9FM2Q28TNH?_encoding=UTF8&psc=1