Quad Melt, 50 LB, All In 1, Ice Melting Crystals, Formulated With 4 Proven Ice Melt Components That Work Synergistically To Provide A Highly Effective & Complete Snow & Ice Control Solution, Works Effectively In Temperatures -10°ree. Fahrenheit, Contains Cma, A Corrosion Prohibiting Additive & Often Specified In Industrial Applications, Safer For The Environment, Bag.