Professional Ice Melters 4-way blend of calcium, magnesium, potassium, and sodium chloride is triple-screened to provide uniform spreading, coated with liquid magnesium chloride to enhance melting power, then treated with anticaking agents to allow easy pouring and extend shelf life. Melts more ice up to 3 times faster than regular ice melters, even to -12. Environmentally safe to green vegetation when used as directed. Leaves no greasy/oily residue to be tracked inside to damage flooring or carpeting. Use in high-traffic areas to minimize slipping hazards and accidental falls. Icemelter Guide available.