3 IN 1 PROGRESSIVE READING GLASSES- ZESAKER multifocal reading glasses feature three strengths in one lens: bottom (the strength you selected) for clear smaller print reading, middle (less strength) for computer and top (half strength) for distance BLUE LIGHT BLOCKING- The upgraded ZESAKER UV400 lenses effectively block over 99% of the harmful blue light, keeping clear vision and true color, ideal for those who spend long hours in front of screens STYLISH READING GLASSES- ZESAKER progressive multifocus reading glasses are designed in fashionable oversized square frames and classic color, stylish and trendy for blue light progressive readers, and you can even wear them at social, office settings, and formal occasions PREMIUM MATERIAL- ZESAKER progressive readers are made of study frames, flexible spring hinges, and scratch-resistant lenses, further ensuring all-day comfort and good looks PACKAGE & SERVICE- The reading glasses come with a glasses case and a cleaning cloth for easy storage and protection. Please NOTE it may take 1-2 weeks to adapt to wearing multifocus reading glasses. Please feel free to contact us if you have any questions ZESAKER progressive reading glasses are designed with three strength in one lens, no more taking your readers off and putting them back on to see things clearly at different distances.