The profits here are very high ... just like glasses ... you can buy them at ordinary stores for hundreds of dollars ... I went to Danyang (Glasses City) and bought a pair of 60 yuan ... The quality is not bad. I have corrected my teeth ... but the top ... 2000 yuan ... at first I went to several places ... about 9000 yuan ... about 7000 yuan ... about 5000 yuan ... and finally I found a 2000 yuan one ... If I straighten it up and down together, it will cost about 5000 to 6000 yuan ... depending on your personality. !