1: According to the factory specifications.perfect match for the car.2: Own different test machines to design exact accurate parameter for our products.All switches were tested for performance.3: Made by high quality material. lightweight. anti-rust. colorfast and durable.4: Aftermarket product with premium quality.5: Stable performance. high reliability.suitable for replacing your broken one.Manufacturer Part Number: 4H1837879. 4H1837879BCompatible With:Fit for A6/S6 2011-2016Fit for A6 Allroad 2013-2016Fit for A7 Sportback 2011-2016Fit for A8/S8 2010-2016Fit for RS6 2013-2016Fit for RS7 2014-2016 Colour:blackMaterial:plasticPackage Contents:1 * Front Left Door Handle Key Hole CoverNote:Only Fit For Left Hand Drive Cars.Unpainted. with silver bight trim.Only the above package content. other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.