- Progressive Tri-Focal Reading Glasses (No visible line)- Lens are divided into 3 sections, 1/3 at the bottom is your selected power, 1/3 in the middle is slightly less than selected power, 1/3 on top is half of your selected power.- No more needing to carry multiple pair of glasses- Attractive modern metal rectangular design finish with smooth plastic temple.- Adjustable English nose piece. - 52mm Lens Width, 33mm Lens Height, 140mm Frame Width (SMALL HEAD FITMENT ONLY)- Package contains 1 Tri-focal Progressive Reading Glasses and 1 microfiber cleaning storage pouch.- This Multi focus Reading Glasses include 3 strengths within 1 pair of reading glasses, so you can read, view your computer monitor and converse with others, all without having to take off your reading glasses.