I have the most sensitive ears ever and have been trying to find earings that don't bother me. These don't hurt at all and I put them in a couple of months ago! They are also comfortable and don't get caught in my hair or clothes.
The ONLY negative is I have somehow lost 2 of the 6 already. Such a bummer. I tighten them by pinching the most that feels possible, and still 2 fell out and I didn't notice. They are small, so finding them if you don't know when it happened isn't likely.