I have the Auto-K paint pen ordered my stone chips on my Golf V mend. Since the vehicle is only 3 years old and the paint is still almost like new, I was very hesitant before buying and skeptical. Last reasonable price persuaded me to paint pen try since the original from VW should be more expensive. First time a giant praise to the seller for the rapid delivery, as the paint pen already arrived a day later. Now about the product, the rock falls on the hood of my Gulf are of course quite small. More extensive damage should not be repaired with the pen anyway but rather repaint equal. Nevertheless, the rockfalls were clearly visible. Especially after the car wash. Straight through the bright primer on the black lacquer fell scratches on particularly well. In two places also sat a bit rust. When paint pen with a rust eraser, a small wire brush. Again, I was skeptical to damage even more the paint. Nevertheless, I tried it and with a lot of patience and a steady hand, I actually managed to clean up the sites. After the questions were stainless and cleaned, I began the job with the very fine brush to paint. The results stunned immediately. Clear the places were still easily visible, but no comparison to earlier more. Who does not know that repairs never sees. The result has been improved when I one day later cleaned the entire bonnet and polished. My conclusion: The pin is only suitable for small and no major repairs, only confirms it Rezessenten other statement. Too big scratching the Aussbesserung falls on course. However whom small stone chips as my golf plague, which makes this not something wrong. For the price of the pen is simply unbeatable! Strong buy recommendation!