I don't know why I did it, it's just a waste of money hahaha I don't even know the effect haha ... I really won't go back to the factory type again. I'm so angry ㅠㅠㅠㅠ They just took the money. Don't tie the cartilage. It's really ineffective. It's not effective. Just don't do it! For your information, I did it because it was recommended to me when I went to get my nose cut.