: This car engine start button cover is made of premium zinc alloy, full of delicate metallic luster. Is cnc-carved by German high-precision cnc machine tools. It is well-made and can be opened or closed smoothly. With excellent characteristics of hardness and scratch resistance, rust resistance, water resistance, non-fading and non-deformation, ensuring that you can use it for a long time : If you have any questions about the product, please feel free to contact us, and we will help you solve them as soon as possible : The outer diameter of the car button cover is 1.96in, and the inner diameter is 1.18in, which can be applied to about 90% of the car models(car,suv,truck.etc). It is also suitable for door keyholes, door viewer, computer power buttons, socket holes, USB ports, DIY decorations, etc. It's a good choice as a gift : Fourth generation rhombicd design, Spin design gives you an extra sense of ceremony, Fashionable and beautiful, and the rotary opening makes your every start more cool. We have improved the structure of the product to make the gears rotate more smoothly, Rhombic design without jamming, compact and without wobbling. Upgraded product lifespan increased by 5 times : First, clean your car button before installation. Then stick the red circle sticker to the surface of this cover. Then tear off the wrapping paper of double-sided adhesive tape and stick the starting cover on the ignition button. No any modifications, no any drill, non-destructive installation, does not affect the original car button start. (The second-generation non-marking double-sided tape does not leave any traces when removed): Heating the tape for a while will get better adhesion, and it won't cause damage to your car - : This push to start/stop button cover is useful more than just in interior decal, prevent the Car Push Start Button from Scratch and Abrasions, Protect the Car Paint, and Protect Your Child from Accidentally Touching the Start-stop Engine Button. In addition, it can prevent children or pets from accidentally touching the start button and improve driving safety. It's a life saving car gadget in a sense