Durable & Protection: Durable and prevents your car from finger nails and keys scratches. Covering the existing scratches.this cover trim is sturdy, rustless and scratch-resistant, to ensure maximum strength and durability for long lasting usage.Decoration: Special decoration parts that keep your vehicle unique and eye-catching, Instant upgrade the appearance.Freshen up the interior of your for Mercedes Benz with this chrome accessories.Install Carefully: Let the two sided adhesive tape set for at least an hour before doing anything but press straight down on the button cover. Held each cover firmly against the surface for 23 seconds after initial placement before moving on to the next, to assure flush and permanent installation.Easy installation: There is Double-sided glue inside (if the temperature is low, please Heating with a blower).compatibility: For Mercedes-Benz C-Class W204 2008-2010 (models at the beginning of 2011, check the picture to confirm)For the Mercedes-Benz E-class W212 2010-2012 before the change (in early 2013 models, please see the picture confirmation)Suitable for Mercedes-Benz S-Class W221 2008-2012For Mercedes-Benz GLK X204 level 2008-2012 pre-updateMaterial: ABScolour: blackPackage Contents: 12 x steering wheel button stickerOnly the above package content, other products are not included.Note: Light shooting 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.