Intellilens | Zero Power Blue Cut Computer Glasses | Anti Glare, Lightweight & Blocks Harmful Rays | UV Protection Specs | For Men & Women | Black & Blue | Square | Medium Premium Blue Cut Technology : Featuring Premium Blue-Cut Lens technology, Intellilens glasses shield your eyes from harmful digital blue light and sun's UV rays and provide robust UV420 protection. Frame Material : Made from TR90 which is incredibly durable, flexible, lightweight and extremely comfortable for both Men & Women. Frame Style : Square style frames embody a classic yet contemporary aesthetic, fitting well on round or oval face shapes, lending a dash of sophistication to your everyday attire. Lens Material : Anti-Glare, Hydrophobic, Lightweight, Scratch Resistant and Dust-Resistant premium CR39 lenses offering clear, unobstructed vision. Care Instruction : Your glasses help you see clearly and in focus. It is important to clean and maintain them regularly. Simple spray lens solution on your lenses and wipe them with a microfibre cloth to keep your lenses smudge-free.