SCRATCHES PROTECTION: - The volume control knob is designed to cover existing scratches and protect it from finger nails, keys, and other potential damages. STYLISH DESIGN: - With its elegant design, this volume knob will enhance the overall look of your car interior and add a touch of fashion to your ride. PRODUCTION: - Made from ABS materials, this volume knob ensures sensitive performance and longevity. PERFECT MATCH: - Manufactured according to the original car specifications, it is a perfect fit for MercedesBenz C Class 20072009 and GLK 20082012. EASY INSTALLATION: - No additional tools are required for installing this volume control knob. Simply remove the old one and replace it with this brand new knob for anupgrade.