TR framePolycarbonate lensNon-polarized
Lens width: 50 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.FLEXIBLE TR90 (PLASTIC TITANIUM) MATERIALS – TR90 is a material with super toughness, wear-resistance, and stress-resistance, so the frame can not be easily deformed or damaged. These round blue light blocking glasses are made of ultralight unbreakable TR90 frames, anti-blue light lenses, European style nose pads, solid metal hinges, all the quality details ensuring you a comfortable wearing experience.EUROPEAN STYLE NOSE PADS FOR COMFORTABLE WEARING – These retro blue light blocking glasses with European-style nose pads can fit European high nose bridges well. The ultralight feature will enable you a long-time wearing without pressure on the nose.