I bought it and spent less than 100. I think I kept using it for four months, but the effect was slow. Because I didn't find any change in my nostrils, I didn't find any effect. I think if my nose really grows taller, my nostrils will change a little, but my mother said that I corrected my teeth when I was a child and it took me half a year. At that time, my bones were not yet formed, so I might as well change them. I'm looking forward to it, too, but I think it's all from China, but there's no need to buy anything genuine. It works well. I can take it for more than two hours a day and put it on the top belt. It hurts. I suggest not to hold my head at first, because I think it hurts, but don't delay breathing, just stick to it ~! I think my nose looks good when I put it on, but it changed back after planting it, hehe. This is my experience in using it. Now I know that the instrument with a straight nose is equipped with massage. I went to Taobao and typed this name: OMNI nasal appliance, beautiful nose clip, 665, but I just ordered it recently. It was copied in China. I bought it from 93 yuan, but it hasn't come yet. I don't know how it works, but it's more scientific. Other nose clips are even more unscientific, mainly because the effect is definitely slow. . . . The above is my experience. Please ask me again if you have any questions. QQ8079 1355