Warm reminder: The new version has dual CHANEL logos, and the old and new versions will be shipped randomly, please be informed. Total width of glasses: about 135mm Please note that the specification 51/53mm or 52/54mm selected when purchasing represents the lens width. The one with "A" in the item number is the Asian version, and the one without "A" is the European version. The difference between different versions is that the width of the nose bridge of the Asian version is slightly wider than the European version by 1-3mm. Please pay attention to the version distinction before purchasing.