New Authentic Chanel Sunglasses Model: CH 5408-A C.622/S4 Black frame with Gold Logo letters Comes with Chanel case and cleaning cloth Oversized style. If glasses are too loose, they can be adjusted with heat. There are helpful You Tube tutorials or can be taken to an optical for adjustment. Lens width: 56 mm Bridge: 17 mm Temple length: 140 mm All of our items are authentic. If you wish to have them authenticated use a legitimate authentication service. Simply send them the link to the listing and they give you an answer within 2-3 days. Please note, retail sales associates are NOT authentication experts.