BLUE LIGHT FILTER LENS - Henotin transparent lens. Blue-ray blocker with UV400 protection, Effectively resist harmful Anti-blue Light. prevent insomnia and macular degeneration. Obviously reducing eye strain, glare, headache, fatigue, migraine caused from gaming / reading phone PC TV digital screen.COMFORTABLE TO WEAR - Lightweight spring-hinged mirror legs ensure a comfortable fit,no pressure to wear the glasses,Enjoy your digital time,successful contrast between a retro square shape and futuristic clear finish, this frame is sure to turn heads wherever you go.HIGH QUALITY MATERIAL - polycarbonate lenses reduce chromatic aberrations, restore true colors,lenses with accurate degrees, Temple with firm and flexible,excellent toughness, lightweight, and making these reading glasses not easy to be scratched.To ease your close reading pressure.4 PAIRS OF QUALITY READERS - Convenient set allows you to keep a pair of glasses for reading in different places, packing:collocation eyeglass cloth, closure bags, cleaning cloth，screwdriver,which can be a exquisite gift sending to your families and friends.NO RISK WARRANTY AFTER SALE - in case of any question or problem, please contact the seller without any hesitation to solve until satisfaction. We provide no risk, worry-free warranty after sale service for all glasses. You can return and get refunded for no reason. Customer satisfaction is our priority.