Use this drum heated dolly to warm your nonflammable, nonhazardous material contained within 55-gallon metal drums. The built-in infinite control (0 to 100% adjustable) features on/off as well as heat pulsing action. Drums rest on a spring-loaded 15 1/4” square by 1/4” thick aluminum heat platen, and rolls on 3"-diameter steel swivel casters that feature two-wheel locking capability. Measure the temperature of drum contents with an external temperature measurement device (not included) for more precise temperature control.