OK, so this is not for the GN owners but those of us which Buick chose to bestow colors upon. Over time the white stripes on the rear bumper have faded and flaked off. Being somewhat of a cheapskate I didn't want to buy a new rub strip because the stripe wasn't in primo condition. The solution came in the form of this new Duplicolor tire paint pen. It sticks well to the rub strip and the tip is about the same width as the stripe. Remember to dab it on not wipe and be prepared to make several passes, thin coats are better than thick. Go back with lacquer thinner to remove any excess.