PC Glasses Lightweight Type Square Blue Light Cut Black Simple, slim, lightweight, and easy-to-use PC glasses. Material: Lens: Plastic Frame: Plastic Product Size: Front 13.6cm x Height 3.2cm x Side 13.8cm Blue Light Cut Rate: 40% Visible Light Transmittance: 94% Ultraviolet Light Transmittance: 1.0% (Cut Rate 99%) Protects your eyes from blue light from computers, smartphones, tablets, games, etc. Please refrain from using for purposes other than intended. We have checked the product, but in rare cases, there may be some scratches. As this is an imported product, please refrain from purchasing if you are concerned. Computer Glasses PC Glasses Blue Light Cut