Frame Size: 53-17-144 MetroSunnies™ Con-Strain™ PRO Photochromic lens automatically adopts to your environment. It will darken when exposed under the sun giving you UV400 protection and will turn back to its clear or primrose color when you go back inside. All this while giving you blue light protection. Long hours of screen exposure can be harmful to your eyes as it may cause digital eye strain and disrupt your sleep quality. Blue light is a high-frequency light wave between 380 - 485 nm. It is emitted from the digital screens of your smartphones and computers. PRO TIP: Wearing Con-Strain™ glasses may help you sleep better. What's in the package? - 1x MetroSunnies™ Eyewear - 1x MetroSunnies™ Designer Pouch - 1x Microfiber Lens Cleaner Note: Some Con-Strain™ lens have clear, bluish, yellowish or greenish tint when reflected in light.