NFC Smart Ring rounded carbon fiber. Black matte wedding band

Men's high-tech ceramic wedding band inlaid with black carbon fiber running through the center of the ring. This wedding band is perfect for someone who wants a lightweight yet durable wedding band.

Men's Black Carbon Fiber Wedding Band: cermaic, Polished Finish, 8mm, Comfort Fit, 9.5 | Northern Royal

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NFC Smart Ring titanium and carbon fiber woven at 45º. Unique and industrial black wedding band. Water resistant hypoallergenic. (04905_8N) : Handmade Products

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Men's - Tungsten / Black Carbon Fiber Wedding Band: Width 8mm, Comfort Fit, 13 | Northern Royal

HECERE Waterproof Ceramic NFC Ring, NFC Forum Type 2 215 496 Bytes Chip Universal for Mobile Phone, All-Round Sensing Technology Wearable Smart Ring

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Men's Titanium, Corian and Carbon Fiber Ring. Industrial and Modern Wedding Band. Water Resistant and Hypoallergenic. 03401_7N