Ray-Ban RB6391I 2595 Half Rim Frame Reading Glasses/Bifocal/Progresive Lenses

  

Bifocal(Round Top) Lenses with Photochromic, Anti-Glare + Blue Block technology. You need to select your magnification strength for Near Vision(Bottom part) from the following powers: +1.00, +1.25, +1.50, +1.75, +2.00, +2.25, +2.50, +2.75, +3.00.