Double Ring

This ring is designed for the left hand.

It appeals very strong and extravagant.

I recommend polished nickel steel since it has a cold and industrial feeling to it. Note that this material turns matte black over time where it touches the skin. I personally like the effect a lot. 

Different to stainless steel it doesn't color your skin. Turning black creates a protective film.

Its designed for the middle and ringfinger. Since these two fingers are anatomically connected it won't restrict your freedom too much. I wear it every day without it being uncomfortable.

the diameter is 18mm. Due to its geometry you can go for a bigger ring without the danger of loosing it.

18mm fits rather thight on my hand (guy, 180, average weight), but a friend with thinner fingers is wearing the same size without problems.