[Material]100% new and high quality aluminum alloy, the is smooth, no fade, high temperature resistant, sturdy, rustless and scratch-resistant, to maximum strength and durability for long lasting usage. [ & Protection]The high quality knob cover change interior design of the car and add colors to it, making it high class, and different from any other. [Easy to Install]with Double-sided adhesive tape on the back, pls cleaning , and heat the Double-sided tape tape by a hair dryer before stick on, and it almost 1 minute. Applicable Models: This knob cover is compatible with for C7 2014-2019 Please take some time to check the mounting position and the compatible models and years for this item before purchase in case the product doesn't fit. Material: Aluminum alloy colour: Red Package Contents: 4 x AC Volume Knob Button Cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a