1.Clean the dent with a clean wet cloth 2.Mount the glue stick into the glue gun, pull the trigger to let the glue stick enter into the glue gun, connect the power source and preheat for 5 minutes 3.Use a proper drawing gasket. Large dent requires a large drawing gasket. (Note: The larger the drawing gasket is, the larger the drawing force is) 4. Pull the trigger and apply the drawing gasket with extruded glue (The 4 holes of the gasket should be applied with hot melt glue) 5. Fast place the drawing gasket with hot melt glue at the center of a dent, press lightly until the glue cures and adheres (Let the glue cool for about 8 minutes. The cooling time should be less than 10 minutes and should be shorter slightly in winter) 6. Align the T-shaped repairer and press the drawing gasket with hot melt glue, pull the sliding rod backward to pull up the dent 7. Check with a Line board. If dent still exists, knock it slightly with a flattening hammer or pen 8. Clean the repaired place with a clean wet cloth.