Looks like a septum piercing. A thin gold wire you can put on without getting your nose pierced. Polished 18karat gold. Made in Munich.
This item cannot be shipped to Switzerland, it is too thin to get stamped!

Material:
18karat gold (in the WIRE collection we use gold with a little higher amount of copper to get a beautiful classic warm rose shade of gold)
Measurements:
The wire has a thickness of 0.6mm in gold or 0.7mm in silver
Care:
This is a very delicate piece. Take care to not bend it and store separately.