Paint-free car dent repair technology does not need to destroy the original car paint to repair the car body dent surface. The principle is actually very simple, that is, based on optics and mechanics, using the lever principle, the pits with different depths are slowly restored to their original appearance. The picture below can be seen at a glance.

The threshold of learning is still very low, but if you want to be a master, you have to practice in a real car.