BETTER MATERIALS: We use PC resin that is the same material as sunglasses. It is stronger than most acrylic plastic sheets used on the market. It is resistant to high temperatures and low temperatures, and does not deform at -20 to 80 degrees Celsius. The polarizing effect of this material will not cause dizziness after long-term use and will not affect driving safety BETTER TECHNOLOGY: Functional components adopt polarization technology, blocking harmful UV rays and dazzling reflected lights from buildings or car rears. It eliminates visual fatigue or discomfort to enable clear vision even under extreme sunlight. --- Safe Driving for Car CONVENIENT INSTALLATION: Quick installation of car visor extensions, Fits perfectly to the original visor, ensuring your extender never moves and doesn't fall off while driving. fits most cars. Pinch the spiral plastic spacers on the left and right sides and enjoy 180° angle adjustment of the polarized visor MULTI-SCENARIO USE: In the summer can block direct sunlight and object reflection, winter can reduce snow blindness, for us to bring a comfortable driving environment. (Note: It is not recommended to use the sun visor for car in the dark.) UNIVERSAL COMPATIBILITY: Car sun blocker extender is compatible with most cars. Not only for driver, but also for front passenger. Polarized car visor lens size: 12.59 * 5.11 * 0.02 inch QUALITY SUPPORT: Package: 1 polarized car sun visor + 1 polarized test card + 1 cleaning cloth. We provide 1-year quality support for this polarized car sun visor. If you have any problems with the purchased product, please feel free to contact us, we will solve the problem for you as soon as possible Universal Sun Visor Extender for Car Easy to Install, Provides a Comfortable Driving Experience in Bright Light