1. Stainless steel heating tube: using stainless steel heating tube, which has high hardness, good rust resistance and good heat resistance. 2. Fast heating: 600W power, with stainless steel heating tube, it can heat up quickly and raise the water temperature quickly, only need 1 to 2 minutes to heat up, it should be noted that it takes about 20 seconds to remove the immersion heater after disconnecting the power supply. 3. Easy to use: This heater is easy to use and has a clip next to the tube that you can hang on the wall of a cup or other container to hold it in place. 4. Power cord: The immersion heater is equipped with a one meter long power cord. The power cord is made of copper wires. It is wrapped in PVC insulation. It is resistant to high temperatures and oxidation. You can use it with confidence. 5. Small size and easy to carry: The heating element is medium in size and suitable for heating water or coffee in a cup or kettle at home, in the office, in the dorm or while traveling. 6. Product Note: Please allow 0-3cm variation due to manual measurement. Thank you for your understanding. Monitors are calibrated differently. The color of the product shown in the photos may vary slightly from the actual product. Please refer to our sizes before ordering. 7. Delivery quantity: 1 set.