Using the carbon fiber pillar post cover set is easy. First, make sure the surface of the door pillar posts is clean and dry. Then, simply peel off the backing of the 3M double - sided tape on the cover and stick it firmly on the pillar post. Press it down evenly to ensure good adhesion. As for maintenance, you can clean it with a mild soap and water solution. Avoid using abrasive cleaners as they may damage the carbon fiber surface. If you notice any loose edges, press them back down gently. Keep your vehicle in a shaded area when possible to prevent the carbon fiber from excessive sun exposure, which can help maintain its appearance over time.