Premium Durable: Made of ABS and copper, heat resistant, dustproof, and durable. Rapid Heating: Brings liquids to a rapid boil in 10 minutes. Ideal for heating water, tea, coffee, soup stock, and more. Compact Size Design: This travel-sized immersion heater is small enough to fit in your pocket and saves space. Useful and Convenient for Car Travel: Can be used to boil water, coffee, or tea in your car. Suitable for outdoor activities such as road trips, camping, and picnics, especially during cold weather. Warm Prompt: Must hold the heater in your cup to submerge it, plug it in, unplug when the desired temperature is reached, wait 15 seconds, then remove it from the liquid. Color: Black Material: ABS + Copper Package Contents: 2 x Water Heater Note: The package includes only the items listed above. Other products are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error is +/- 1-3 cm.