I was ready to pay extra if I could get gold ball earrings that did not cause any reactions, that seems to be an issue I'm affected by. I did a lot of looking, and finally found these. I have had them on for a couple of weeks now, and so far they are great. The posts are somewhat shorter than on others I have had, but they fit no problem and they are probably also less likely to snag on something and come off; that's what happened to my last pair. I got the 6mm and they are perfect, I also like how they look.