TAICHENG Car Electric Kettle Boiling DC 12V Cigarette Lighter Heating/Cooling Cup Vacuum Insulated Stainless Steel-Black Specially designed For DC 12 Volt cigarette lighter , heating/cooling Two applications Food grade silicone rubber, comfortable feel Boiling water in car, temperature is 100 oC, Make coffee, Make tea,hot milk, boiled eggs etc. Customize the temperature freely,Double layer vacuum insulated for maximum Keep hot drinks Cup capacity:400ml , great for work, school, car trips, or camping