I purchased these at the CHANEL Takashimaya Osaka store about 3 years ago. I bought them at an authorized retailer, so they are definitely authentic. I used them a few times for short periods, but I no longer have the opportunity to use them, so I am selling them. The round clear plastic that was around the posts when purchased has been discarded, so it is not included. To prevent fraudulent returns, we do not accept returns. Also, although purchased at an authorized retailer, if you are concerned, please use Mercari's "Anshin Kensa" (peace of mind appraisal) service. #CocoMark #Metal #Strass #Costume #Pearl #Earrings #GOLD #BLACK #Gold #Black