Polarized Sun-- The thickness of the car visor extender is 0.8mm enough to block direct sunlight during the day eliminate any visual discomfort block direct sunlight protect your eyes to ensure safe driving. Cuts The Glare-- Strong resistance and anti-fatigue car sun visor extender prevent direct sunlight and cut the glare eliminating the reflection of the sun diffuse reflection road surface can effectively filter the glare of the eye effectively blocking harmful light such as ultraviolet rays. Works Same As Sunglasses-- The role of the sun visor is much the same as the role of sunglasses if you are short-sighted it is not convenient to wear sunglasses again or do not like wear sunglasses then this sun visor extension is your best choice when driving as long as you buy this sun visor you can effectively prevent strong sunlight see things are not harsh. Quality And Useful-- Sunshade lens using PC snap / PMMA lens material is a translucent material for you to block the sunlight you can also see the scene outside the car does not affect the vision at all. Stably Install-- It is very easy to install quickly on the car visor and anti-glare sun visor all the day. Clip on sun shade for car Size: 5.7 inch(H)*12.6 inch(W)*0.1 inch(D). Easily folded to store when not needed.