DUCO Night Driving Glasses with Polarized Yellow Lens for Cutting Headlight Glare 2181 Polarized Yellow Lens Polarized lenses can filter out high-glare light from oncoming headlights, street, and other reflective surfaces. These special lenses make colors clearer and objects brighter, so you can maintain your focus on the road; Yellow tint also helps to soften harsh, bright lights and relieve eye strain, so you can drive at night with more comfortable. Filter Glare Effectively Night vision lens reduce night driving glare and eye strain, enhance night vision, improve color clarity and optical definition, enable to see better when driving at night or cloudy, rainy days, making driving safer. Gentle RemindPlease read description of gentle remind before buying it so that it meets your expectation.Transmittance demand of driving at night is not same as driving at day time.If more glare are blocked the vision will be more dark, which is dangerous. Product DimensionsLens Width: 72 mm (2.83"); Bridge Width: 15 mm (0.59"); Lens Height: 38 mm (1.50"); Arm Length: 145 mm (5.71"); Frame Width: 145 mm (5.71") 30 DAY MONEY BACK GUARANTEE All DUCO customers enjoy 30 Day Money Back Guarantee; Customers can return and get refunded in case the purchasing is not satisfactory for any reasons; DUCO offer a lifetime warranty, if you have any questions please contact us. Never clean your sunglasses with paper towels or clothing, which can leave scratches. Never leave your sunglasses under car&#039;s front window, especially in summer. Prolonged exposure to the oven-like temperatures inside a car can degrade the lens. Gift package is available, making it a wonderful gift idea for your friend! And it is also the premium choice and a great present for Birthday, Xmas, Valentines&#039; Day, Father&#039; Day, Mother&#039;s DayAnniversaries and other festivals.