Dual Lenses: The visor typically includes two panels, a dark or gray one for daytime use to block sunlight and a yellow or amber one for nighttime to reduce glare from headlights.
Anti-Glare and UV Protection: The visor's primary function is to filter out strong sunlight and UV rays during the day and to soften the glare from oncoming headlights at night.
Easy Installation: These visors are designed to be a universal fit and can be clipped onto an existing car sun visor.
Material: They are often made from materials like polycarbonate, which is durable and heat-resistant.