Eyewear Type: Reading Glasses<br />Lenses Optical Attribute: Photochromic Transition Multifocus Lens<br />Lenses Material: Resin<br />Frame Material: Metal+TR90<br />Magnification: <br />Multifocal Photochromic Grey: 0 add+100， 0 add+150， 0 add+200， 0 add+250， 0 add+300， 0 add+350， 0 add+400<br /><br />Progressive multifocus reading glasses have ABSOLUTELY NO LINE. Digital-Ray-Path lens technology delivers the ultimate clarity of vision， with very little distortion on the sides of the lenses compared to normal progressives. See up close， medium distance， and far away all with the same pair of readers. Reading sunglass magnification so invisible， nobody will know you're wearing bifocals but you!<br /><br />Photo-chromatic lenses automatically transition from clear while indoors to UV400 tint while outdoors， giving your eyes unmatched safety and convenience in one stylish frame. Premium-quality 100% UVA and UVB protection with scratch-resistant， anti-reflective coating to protect your eyes while allowing you to see up close， medium， and far distances.