551 -12V Car Charging Electric Kettle Mug (Silver) 12V Car mug sits snugly in your car cupholder and plug, Double wall Car Electric Mug use car battery for Heating It KEEPS the DRINK WARM, It keeps the drink Hot No leak & easy open twist top and keep fresh, light, durable, and easy to carry It KEEPS the DRINK WARM, It keeps the drink Hot Travel Happy journey With Special Heated Mug, Easy to use / maintain. Material :Stainless Steel, Color :Black & Silver, Kitli (inside plastic)