This is a controlled heating mantle from Medline which is an energy-regulated all purpose heating mantle. The time proportional double pole system allows stable control of the heating element reducing risk of overheating liquids whilst the dial controller allows accurate temperature settings.Case construction: Steel with chemical resistant coatingThermal Insulation: Moulded silica powderHeating Element: Nichrome wireMantle: Woven glass fibre matElement Temperature: Up to 450°C (Max)Power Supply: 230V a.c.Watts: 150Capacity: 250mL