Someone had backed into my front drivers side fender just beside the light. I could not find an old school dent puller like when I was in high school and I searched all over. I had read some reviews on the product and figured I would give it a shot. Man what a great product I wish they had known about something like this when I was in school I would have definitely bought one way back then because this thing works great. 110 power source easy to put pins in connect to metal, hold trigger and it welds the pin right to the metal then you take a wrench and undo the pin for the unit and attach the slide hammer to it and give it a couple yanks and out comes the dent. Works as it advertised and very well I might add.