I received this soldering kit just in time to save me from having to spend hundreds of dollars at the auto mechanics shop. One of the relays on my car lost contact and my car would not start. Luckily my friends who drive the same model car told me I could just solder the contact points and it would fix the issue. I received the soldering kit and was able to solder my car and it started right up! If I had to take it to the mechanic there is no telling how much they would have charged me. The kit is perfect and has everything in it you need to get started. It got very hot and did a beautiful job. I love the carrying case as it keeps everything together.