The story of O ring is a simple ring band with a little loop on its top.
In this form the ring was given in Just Jaeckin´s film "story of O" to the female hero "O" to show her complete submission.

Since some years this form of ring has been recognized within all over Europe as a symbol for BDSM, S/M or fetish lovers ...

...worn on the right hand meaning to be ready to deliver oneself into the hands of the loved one ....
...worn on the left hand meaning to be ready to dominate and guide the partner who has delivered himself to the wearer

Body-adornment as means of communication:
... to disclose in a coded way your innermost desires
... to start conversations
... to find a new partner
... to demonstrate togetherness ...

Some are small and inconspicuous, giving clues to be discovered, and others are large and eye-catching.
They are thereby for their wearer a visible identifying mark ... rather statement than suggestion...

jewelry and body-adornments with which you can reveal your sexual preferences either, as you like, in a discreet and reticent or in an obvious unmistakable manner. That way you can express yourself and be recognized by BDSM scene insiders.