"Qik Joe" 40 LB Ice Melt Pellets * Generates heat on contact, Spherical shape bores straight down through ice, Works effectively in temps down to -25 degrees F. * No powdery white residue, Safer on grass, shrubs, plants and concrete when used as directed * Melts Ice & Snow Down To Temperatures Of -25°ree. Fahrenheit, Leaves No White Residue & Will Not Harm Concrete When Used As Directed, Pail.