This polarizing car visor reliably protects from the bright sun and improves visibility behind the wheel during daylight hours. It provides UV and glare protection so your eyes are less likely to get tired. Attaches to the standard sun visor, so it fits absolutely all makes of cars and trucks. The visor is made of high-quality material with polarizing coating, which reduces eye fatigue when driving for long periods of time. In addition, the visor is equipped with a zipper for easy installation. Additional side shades are also available to extend the shading area.