Without damaging the car, directly press the product on the knob, and it only takes a few seconds to complete the installation. Can be used for a long time Made of aluminum alloy, with corrosion resistance, can accompany the car . center console screw protective cover on both sides For 2020-21 Installation instructions: 1)Wipe the where you want to stick. Keep dry and clean. 2)Determine the installation location and then make comparison of the product and installation location. If the product doesn't fit your vehicle, please contact us immediately and DO NOT INSTALL. 3)When tearing off the double-sided adhesive of cover trim, you can't Press the double sided paste with your hand. 4)In order to achieve better effect, if the temperature is below 20 degrees, we suggest heating double sided adhesive with hair dryer or lighter .(Do not heat over 40 degrees). 5)Align position and then paste. The paste effect depends on paste conditions and correct installation. 6)Please do press hard especially on the edges at least 2 mins after installing. 7)Please don't Press water and Keep dry after been install at least 72 hours. Or it will easy to fall off. Material:Aluminum alloy colour:Silver Package Contents: 8 x center console screw protective cover on both sides 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.