Ronsou Day Night Vision HD Polarized Driving Sunglasses Outdoor Aviator Glasses G290 Imported metal frame Composite lens polarized Lens width: 57 millimeters Lens height: 50 millimeters Bridge: 18 millimeters Arm: 135 millimeters 100% UVA and UVB protection Polarized Lenses which are powerful anti-glare day and night driving glasses Al-Mg alloy frame are ultra light and high-grade material. Spring Assisted Temple made comfortable to wear, even for big head