Higher grade of electric components. Improved heat sink and charging capabilities.The quality exceeds or meet the OEM equipment. Fits For For Mercedes R Class R300 R350. 3pcs/1set Air Outlet Vent Cover. Also, the each additional item means. The the same color and size. Transit time may be a little delayed because of the. If you have any questions. This item is in the category "Vehicle Parts & Accessories\Car Parts & Accessories\Air Conditioning & Heating\HVAC Controls & Control Units". The seller is "marketstrends001" and is located in this country: CN. This item can be shipped worldwide.