Colors: Transparent on one side, black on the other. Warning: If you can't wrestle bears this ring is not for you. This is a large ring with a larger antenna suitable for phones that struggle with small NFC Tags(such as the Galaxy Note 3).
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Stainless Steel Wearable Ring with Built-in NFC chip for iPhone, Android or Windows
NFC Smart Ring
Stainless Steel Wearable Ring with Built-in NFC chip for iPhone, Android or Windows
NFC Smart Ring