ATTCL United States Trademark Office registration number : 86434557 ATTCL provide the most high quality and fashionable,The coolest sunglasses. Please pay attention more ATTCL Brand, You will find more surprises! Brand: ATTCL Lens: 100% UV400 Protection Lens,Blocks 100% Harmful UVA,UVB & UVC Rays Frame Material: Aluminum-magnesium Clour: As the picture Size:Lens Height --40MM(1.57 Inches)Lens Width:58MM(2.28 Inches)Temple Length--133MM(5.23 Inches)Nose Bridge:16MM(0.62 Inches)Frame Length 142MM(5.59Inches) Package: Sunglasses *1, Case *1, Glasses Cloth*1, Glasses Bag *1.Polarized test card*1 Service: We Metal Frame provide 30 Day refund and lifetime Warranty on Frame & Lens. If you have any problems in the future, Please contact us, We will provide you the best service! ATTCL Hot Metal Frame Driving Polarized Sunglasses For Men Women, User for Daily life, Party, Driving Sunglasses and all Active Outdoor lifestyles! How Do Polarized Lenses Work? Light reflected from surfaces such as a flat road or smooth water generally is horizontally polarized. This means that, instead of light being scattered in all directions in more usual ways, reflected light generally travels in a more horizontally oriented direction. This creates an annoying and sometimes dangerous intensity of light that we experience as glare. Polarized sunglasses reduce glare reflected off of roads, bodies of water, snow, and other horizontal surfaces. Polarized sunglasses cut glare and haze so your eyes are more comfortable and you can see better.