I love my Hercules auto grip stand. But from my experience, some headstocks do not fit comfortably, and most ukes are not heavy enough to push it down with its own weight as angelopb mentioned. It's weird, b/c the ones at my local store that hold up ukuleles work perfectly fine...maybe there's a screw or something that can be loosened. But I don't use it for ukes, b/c it sort of looks like it might fall off (I've got the single tripod design one). Guitars and basses do fit comfortably, but ukuleles, not so much. Then again, I haven't found that any of my guitar stands have been a particularly good fit for any of my ukes, esepcially smaller ukes have a harder time.