These are PC glasses with blue light cut function from JINS. They protect your eyes by cutting blue light emitted from displays such as computers, smartphones, and TVs. I am selling them because I purchased them and used them a few times, but no longer use them. - Manufacturer: JINS - Product Name: JINS SCREEN 25%CUT JINS SCREEN Design Project - Model Number: FPC-17A-101B - Frame Color: Black - Lens Color: Yellow - Size: 51.0mm (Lens Width), 15.6mm (Bridge Width), 142.0mm (Temple Length) - Non-prescription These are used items, so there may be scratches and dirt. Please check the photos before purchasing.