i've been wanting threaders AND i've been wanting earrings that I can just leave in. I'm horrible at taking off and putting on jewelry so once its on, its on.  :)  Anyway, these threaders are sooooo light, i forget i'm wearing them. Its light and thin to the point that i'm certain it will break BUT the seller does offer lifetime warranty for if it does break. Sounds like a winner to me! I slept with them and completely forgot about them. Not to mention the always fun comments of "how do you get those earrings in your ear" comments haha. I would definitely purchase this again.