I used one of the hot glue pullers in some on my car and I was really surprized at how well it did work . I got a "pops a dent" Wal Mart for $18.88 , but I've seen them other places . Others I've seen had a releasing agent , that mine did not , and I think that wouldhave helped . I had a hard time getting some of the glue off after the puller came other . I had some dents that were between 4 and 10 inches in diameter and 1 that was across a body line . It had much more power that I thought and put liked a tank , but once the metal is creased it's creased . All and all , I was very pleased with the results and I think someone that used one of these a few times would get better fast . I did a much better job and got a smoother surface on the last dent I did and it was the worse . IMO , 20 bucks well spent . six