Mini Electromagnet Shooter Set: use the amperage generated by the electromagnetic field to shoot the metal rods a short distance. You can adjust the shooting strength by adjusting the voltage size and the position of the metal rods. | Note: 1) Don't touch the metal part with your hand when energized, because high voltage will be generated during operation. Although the energy is very small, you need to be careful. Proper installation of the plastic casing can guarantee safety.2) Please discharge the energy storage capacitor before troubleshooting.3) Under 14 years old need to be installed and used under adult supervision. | Practical kit: Not only can be used for soldering practice for electronic DIY enthusiasts, but also can be used for practical teaching and fabrication courses to fully learn to understand the electromagnet, suitable for all electronic enthusiasts and people learning soldering skills. | Detailed installation instructions: this electronic kit is not a finished product, you need to do soldering by yourself. But please rest assured that we have printed clear labels on the PCB and included detailed installation instructions in paper and electronic format to help you complete the assembly smoothly. | Perfect after-sales service: If the project does not work properly for any reason,we will provide you with professional support. We will continue to provide you with services until you are 100% satisfied. It is our goal to let you complete your project successfully and enjoy soldering.