Our car window defroster contains salt compounds, surfactants, and antifreeze. It can quickly melt frost, prevent the surface of car glass from cracking and freezing, extend the service life of car glass surface, better maintain your car, and make the view of the windshield clearer. Its usage is simple: simply spray an appropriate amount of the product evenly onto the surface of the car. Quickly melt frost, improve visibility, and make your driving more convenient.