Formerly Safe Step Pro Series 960 Choice Formula. This environmentally friendly formula is safer for people, pets and lawns when used as directed. It contains our powerful melting catalyst, MG104®, which helps prevent refreezing up to 2 1/2 times longer than conventional ice melters. Melts ice and snow down to -10°F/-23°C. Designated a Safer Choice by the US EPA, a designation granted to products specifically "Safer for People, Pets, and Property when used as directed.".