I wore these earrings out to a football game and overnight (on accident because I was so tired after the game) and these earrings hung on, had no damage, didn't turn my ear green, and didn't hurt when I woke up. I have very sensitive skin and I had no issues with these earrings. I love all the options and I actually got a ton of compliments while I was out running errands! I'm an attention hog, and these did it for me! Love love love! Also, the twisty back is actually allot easier than I thought it would be and I really prefer having a flat back as opposed to regular earrings. Now I need all my earrings to be like this from now on!