Square portable folding reading glasses comfortable high-definition male old light mirror ultra-light anti-blue light not tired middle-aged and elderly

Color classification: Anti-blue light 100 degrees [under 50 years old], anti-blue light 150 degrees [51-55 years old], anti-blue light 200 degrees [56-60 years old], anti-blue light 250 degrees [61-65 years old], anti-blue light 300 degrees [66-70] Years old] Anti-blue light 350 degrees [71-75 years old] Anti-blue light 400 degrees [over 75 years old] Anti-blue light 100 degrees [mobile phone bracket] Anti-blue light 150 degrees [mobile phone bracket] Anti-blue light 200 degrees [mobile phone bracket] Anti-blue light 250 degrees [mobile phone bracket] Anti-blue light 300 degrees [mobile phone bracket] Anti-blue light 350 degrees [mobile phone bracket] Anti-blue light 400 degrees [mobile phone bracket]

Lens power: 400 degrees