Intellilens® Cat Eye Blue Cut Computer Glasses for Women | Zero Power, Anti Glare & Blue Light Filter Glasses | UV Protection Specs | TR90 Frames & CR39 Blue Cut Lens (Black) (51-18-135) Care Instructions: Wash under running water and wipe dry with cleaning cloth THE ULTIMATE COMPUTER GLASSES FOR EYE PROTECTION is made up of frame material: TR90 (Flexible Light-Weight) | Frame Size: Medium | Frame Colour: Blue | Frame Width: 135mm | Frame length : 51mm| bridge width : 18mm ADVANCED BLUE CUT TECHNOLOGY | The anti glare glasses for men and women are made of multi-layered CR39 blue cut lenses that block out harmful blue light to ease computer eye strain. These lenses are also scratch Resistant, offering UV protection and are hydrophobic & dust repellent.