AimTrend Aviator Men's Sunglasses Metal And Plastic frame Good Quality Plastic Material lens Non-Polarized - The main difference between polarized and non-polarized lenses is that polarized lenses are designed specifically to block the glare from reflected light while non-polarized lenses only block intense light. Lens width: 64 millimeters Lens height: 52 millimeters Bridge: 15 millimeters Arm: 120 millimeters AimTrend Nitrogen Polarized Sunglasses is special designed for man Aviator Sunglasses UV400 Protection - UV Protection protect your eyes from radiation. Radiation from the sun can damage not only the skin of your eyelid but also the cornea, lens and other parts of the eye. UV exposure also contributes to the development of certain types of cataracts and possibly macular degeneration. English Style Nose Pieces - Double Bridge Various Colors Available - Brown, White, Red, Black, Black-White, Black-Silver