TR90 FRAME–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 glasses are made of TR90 full rim combined , UV400 lenses lenses, all the quality details ensuring you a perfect wearing experience
☀BLUE LIGHT BLOCKING LENS: can effectively block ultraviolet radiation ,provide 100% UV400 protection and filter harmful blue light,it is suitable for use when watching TV and look at computer