Heating Blanket, 3 Liter Bio Reactor, Hook and Loop Style with 2 prong Plug, 110 Volt, 110 Watt. Manufactured to fit snugly around Applikon-style, unjacketed vessels to supply uniform heat. Made of silicone rubber, all sizes are 110VAC with the wattage as listed. Hook and Loop allows easy installation, even with the vessel in a support stand. Plugs are IEC standard 2-prong.