Bare Ground Premium Blend granular ice melt plus exo-thermic in a 40 lb box. Calcium Chloride pellets is a special blend of rock salt coated with Bare Ground Mag Plus corrosion inhibiting liquid deicer with added Calcium Chloride pellets. This blend creates a granular ice melt that starts to work faster and is 40% less corrosive than standard rock salts. It works 60% more effectively. Bare Ground Premium Blend granular ice melt keeps working at temparatures as low as -20F. Carry slots on the side of the 40 lb box make it easy to pick up and move. Each box is lined with a plastic bag preventing spills and leakage.