These lovely stud earrings are the right size for me and appear to be of high quality. However, the friction backs are way too small. One actually seemed to be smaller than the other but that didn't matter because I was unable to fit either friction back onto the earring post. I dropped one and lost it while trying to get it on. I was quite surprised that no other reviewers found the backs to be a problem. Fortunately, backs from an older pair of earrings securely fit my Blings so I'll be able to wear them. I realize that since I'm a senior citizen in my mid-60s, both my vision and dexterity are not as good as they once were. However, had I known that putting the earrings on would be such a challenge, I would not have purchased them despite how pretty they are.