1.Clean the place where you need to paste and then wipe the water with towel or tissues. It can't accept to have the oil ,water, wax . 2.Determine the installation location and then make comparison of the product and installation location, if the product doesn't fit to your vehicle,please contact us immediately and 't install. 3.When tear off the double to sided adhesive of cover trim, you can't Press the double sided paste with hand. 4.In order to achieve better effect, we suggest to heating double sided adhesive by hair dryer or lighting. 5.Alignment position and then paste, the paste depends on paste conditions and correct way to install. Project Type: Interior Decoration Decoration: A Class W177 C to Class A180L A200L 2019 Material:ABS colour:Carbon fiber pattern Package Contents: 1 x Armrest box switch 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 to 3cm.