This Product Does Not Conform To EN166 And Are There For Not Classified As Safety Glasses. Premium acetate frame/square style, Translucent grey, Polycarbonate lens for resistance and optical clarity, Embedded ProBlu 420 technology and Anti-reflective coating, Slightly curved frame, This elegant and classy crystal frame comes with PrB lenses absorbing 100% of harmful blue light at 420nm and 82% of harmful blue light at 445nm, Protects your sight from blue light, Supplied with hard case, microfibre cloth, user instruction.