15-layered Sputtering Coated With Nano-film Technology: Heat mirror film provides maximum protection with high heat rejection performance. For a comfortableness and solar protection in the vehicle, at work or at home, it is smart choice to choose V-TECH heat mirror. By spectral selective technology, it offers outstanding optical clarity, industry leading color stability and durability, scratch resistance with hard coating. This 15 layers of sputter coated Heat Mirror film with German technology not only keeps interior illumination, but blocks IR rays up to 98%. Features and Benefits - Providing protection from excessive heat and harmful UV rays - Saving above 30% on cooling and heating costs - Minimizing UV health risk to skin and eyes - Reducing interior fading - Exceptional optical clarity