Safe Step Enviro-Blend 6300 is safer to people, pets and vegetation when used as directed, but has a melting power that outperforms other ice melter blends. The patented formula contains our powerful melting catalyst, MG 104, which helps prevent refreezing up to 2.5X longer than conventional products.An ice melter that has a melting power that outperforms other ice melter blendsThe patented formula contains powerful melting catalyst MG 104, which prevents refreezing up to 2.5X longer than conventional productsHelps prevent re-freezing up to 2.5X longer than conventional ice meltersLess harmful to plants, pets, shoes or carpet when used as directed