UV400 HD polarized lens: effectively absorb the reflected glare and scattered light which perpendicular to the axis, eliminate harmful ultraviolet light, offers you a more clearly vision. Transforms regular glasses into sunglasses: Easy to clip on to any regular glasses (not suitable for glasses which bridge is very thickness.) Attaches onto existing prescription or fashion glasses. Great for those who already have a pair of prescription glasses. Driving: Enhanced road surface brightness, enhanced sight, reduce blur caused by rainwater. Increased driving safety. The lens with special harden process are wear resistance, scrape resistance, impact resistance and anti glare! Style: Clip-on Sunglasses, driving glasses, police glasses, driving sunglasses. Perfect for outdoor sports, fishing, traveling, decorating! It will also be a great gift for your friends and family! Specification: Feature: Professional polarized UV anti-glare sunglasses Material: Plastic+Metal Visible Perspective Rate: 100 (). Lens width: Approx 5.9cm / 2.32 inch Lens height: Approx 3.6cm / 1.42 inch Bridge width: Approx 1.8cm / 0.71 inch Frame width: Approx 13.1cm / 5.16 inch Package Includes: 4 Pieces Polarized Sunglass Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.