Prestone Driveway Heat is the ideal tool this winter to ensure that your driveway will be safe to travel on. It comes in a 9.5 lb. jug of this concentrated material that will melt ice in a hurry. It comes in the form of calcium chloride pellets that can be used to spread over the necessary area. They are a premium-grade hygroscopic formula that draws moisture from snow and ice, allowing for an efficient and fast melting process to help get you on your way. This concentrated ice melt will melt down to -25 degrees Fahrenheit. It melts faster than blended deicers or rock salt. With proper use. Prestone Driveway Heat leaves no powdery white residue, so your driveway will still look neat and tidy when the snow and ice are gone. It will provide you with maximum protection against freezing temperatures and help prevent slipping and falling while you are outside. Item dimensions: 7.5 x 5.5 x 10.5.