Name: Car Speaker Audio RingMaterial: Aluminium alloyColor: Red; BlueApplicable:For Mercedes-Benz C-Class W205 2015 2016 LHD (left hand drive)For Mercedes-Benz GLC-Class 2015 2016 LHD (left hand drive)Installation instructions:1. Insure that the surface which the product is to be applied is clean， dry and free of all ail， grease and wax.2. Determine exact location of product.3. Remove protective film from adhesive， align carefully and then press firmly to insure proper adhesion.4. Do not move the product or wash your car in 24 hours after installation. Note: The pictures are for reference only. The actual product shall prevail. Package: Car Speaker Audio Ring x 4 Pcs/Set