Description
The earring hooks are niobium. Niobium (chemical symbol Nb) is the safest metal for people with allergies and sensitive skin. If you have never been able to wear any metal jewellery, you can wear niobium, as it is a pure element (99.99 %) with nothing extra added. Niobium does not react with skin chemistry and will not rust or darken.
Erja (verified owner) -
I'm really allergic to different metals, but not to these. I wore it for several days and no rash.