TR framePolycarbonate lensNon-polarized
Lens width: 55 millimeters
Lens height: 45 millimetersHIGH-DEFINITION ANTI-BLUE LIGHT LENSES – The high-definition anti-blue light lenses are the best choice for long-term computer use. They can reduce the symptoms of eye fatigue and maintain natural sleep. The original non-prescription lenses can be replaced with progressive lenses at any store.UNBREAKABLE ECO-FRIENDLY TR90 (PLASTIC TITANIUM) RIM MATERIALS – TR90 is a kind of material which is super toughness, wear-resistance, stress-resistance, and thus the frame is not easily deformed or damaged. These blue light blocking glasses are made of TR90 frames, anti-blue light lenses, European style nose pads, all the quality details ensuring you a perfect wearing experience.