Even if you read it here again and again and also in the product description reads "Especially soft, non-abrasive microfiber cloths, the colors, paints and surfaces not attack" - That's not true! I tested it on my 'brilliant black', almost new car, and at the point where I wiped with the microfibre cloths are micro-scratches to see (if the light falls on it properly).
The towels are good for the inside of the car and also for all other not so sensitive surfaces, but stay away from the car paint!
I tried to photograph. Is not perfect but you see, I think what I mean :)