* This product does not include an installation tutorial, step-by-step illustrations, or tools. Self-installation may affect the fit and security. To avoid unnecessary damage or installation errors, it is recommended to have it installed by a professional auto service organization. * Vehicle-specific; For A3 S3 8Y Sportback 2021 To Present Rear quarter window trim accessory, perfectly fitted without any warping, achieving like fit. * ABS material boasts excellent weather resistance, unaffected by high temperatures and everyday impacts, resulting in a longer service life. * Simple, streamlined design optimizes the visual layering of the rear, significantly enhancing the vehicle's personality and recognizability. * Non-destructive installation structure, does not damage the original paint or any body parts.