Application for Audi A3 / S3 2013-2020 Specification Mount Type:In-Channel Exterior Finish:Black Tinted Auto Part Position:Front, Rear, Left, Right Number of Pieces:1 Set of 4 piece Installation Type:IN-CHANNEL INSTALLATION Installation Method: Adhesive Tape, Clips Material: High Quality Acrylic Plastic Thickness:1.8mm Feature 1. Our wind deflectors can enhance the appearance of the car. 2. Our wind deflectors can effectively prevent rain from invading the car and keep the cockpit dry and fresh. Note Professional installation is highly recommended.