What does the V-Kool logo on the car window with V-Kool film mean?

It was originally called the WeiGu safety label, but because it was yellow, many people called it the WeiGu small yellow label. Slogan: i'm v-kool means almost the same as "I'm cool". Car owners with V-Kool insulation film will wear this. In addition, because it is a safety sign, the Weigu safety sign has a certain effect. When driving at night, it can be illuminated by the lights of the rear vehicles and reflect the light of the yellow safety sign, warning the vehicles behind to keep a safe distance.