"A nose bone has a jewel or whatever adornment on one side, the post and then on the other side of the post is a metal ball. If you can manage to get it in without doing damage, that's a pretty good feat. Once it's in there though... the skin shrinks around it and then to get it out you have to yank that ball through the piercing (which doesn't feel very good). Oh, and they only come in one size fits most... so if your nostril is too thick, it may not go all the way through and your piercing could close up on the inside. They're often made of cheaper metal and most of the time, at least the ones I've seen, had to be cut out of people's faces because it hurts too much to just pull out. Not fun."
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