These are gold filled, which is enough for my sensitive skin to not give me a rash, warmth or other distress. I got them to replace the cheap plastic backs that came w some "2nd hole” gemstone earrings that have gold posts. I’ve been wearing them nonstop for over a week and they are not causing any sort of negative reaction. My skin is very sensitive. If they work for me, they will probably work for you. Nice size for post earrings. Not those ridiculously small ones you see sometimes.
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