The Reddit user, who recently bought an Oura smart ring to improve their health, revealed that the purchase was enough ...
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Make unique rings from bearingsTurning an used ball bearing into a nice ring with some very basic machining ... used ball bearings are usefull as spacers for inserting new bearings and they can provide high quality steel ...
It’s a watch. It’s a ring. It’s more jewelry than either, and that’s what makes it special.
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