Features: This soldering iron tool kit contains 20 soldering iron tools to meet all your soldering needs. Suitable for electronics, jewelry, soldering, wiring, electronic devices,computer hardware, etc. Supports adjustable temperature, soldering can be performed and adjusted from the control knob from 200C - 450C. As a result, it can regulate the temperature in a more accurate and effective way. Internal ceramic heating unit makes the soldering iron quickly heat up and ensures long lifespan. Upgraded heat-insulated anti-scald grip, vent holes on the steel pipes help to cool quickly. This type of soldering iron is made from some metal alloys, which is oxidation resisting and it won’t rust easily while immersing in water. so it can be used for a long-term period. Comes with a tool box for easy storage and easy to carry. The tool bag has inner protective layer to avoids damage to the soldering iron accessories.