【High quality】Push to start button decoration ring made of high quality zinc alloy, which is sturdy and durable, and with Double ring crystals on it, making the product dazzling and beautiful for Car Glam Interior Accessories and Unique Women Gift. 【Universal Size】Outer diameter: 1.53 inch, inner diameter: 1.15 inch, thickness: 0.12 inch.Fits most cars, SUVs, and trucks with a round engine start/stop button smaller than 1.15 inch. NOTE: Please confirm that your button size is smaller than 1.15 inch before purchase. 【Easy Installation】Each crystal ring comes with an adhesive tape. Simply peel off one side of the tape and stick it to the back of the ring, then peel off the other side and firmly press it onto the button! (For best results, clean the surface beforehand to enhance adhesion and extend longevity. In low-temperature environments, the adhesive may weaken. Use a hairdryer to warm the tape for about 5 seconds to improve stickiness before attaching.) 【Application】 These rhinestone ring accessories are designed to decorate your car’s engine start/stop button, A/C knobs, radio switches, gear shift, and more.Fits most vehicles with round buttons, but not all models — please check your button size and shape before purchasing. 【Attention】 Before purchasing, please measure the diameter of your engine start/stop button using a ruler or caliper.This ring fits buttons smaller than 1.15 inch.Simply measure across the center of your button to confirm compatibility.