Synergistic formula containing Meltium? and CMA? provides effective ice and snow melt performance down to -20� F. Certified nontoxic, melt is safe for people, animals and vegetation. Long-lasting crystals minimize the potential for freeze-thaw-refreeze cycles. Noncorrosive chemicals are safe on metal and concrete as well as on leather and most fabrics. Cake- and clump-free product features an unlimited shelf life. Bag. Capacity (Weight): 50 lbs; Quantity: 1 each.