[POLARIZED VISOR & CUT GLARE] Our car sun visor extender uses NASA polarizing technology to filter out the reflected light , eliminate the distracting and blinding glare that causes visual discomfort in any sunny situation. Paired with polarized tester card, you can also test the effect of other sun visors and sunglasses | [360° ROTATION & FREE HEIGHT ADJUSTMENT] : Our sun visor uses the unique Cardan Shaft to adjust the angle of visor extender. Position can also be adjusted by Height Adjustment Slider. Which makes it fit for all people and cars. compatible with visor's width range from 5.1 inch to 8.2 inch. | [SPRING LOADED & AUTOMATIC INSTALLATION]: SPRING DESIGN makes it Easiest to Install, you can install our visor just by one hand. | [UV400 VISOR & PROTECTS YOUR EYES] our visors protect your vision against various ranges of harmful radiation from the invisible and visual spectrum, Block UV rays 100%, Whether you’re stuck in strong sunlight or you’re sensitive to light, our visors provide full EYE AND SKIN PROTECTION. | [POLYCARBONATE & BEST DURABILITY] 60 times stronger than glass, 20 times stronger than TAC, 10 times stronger than resin, our car sun visors also have better light transmission, impact-resistance, temperature resistance and scratch-resistance, giving maximum strength and durability for long lasting usage.