Great product. The crystals in my black frames look so good. I don't know why I haven't bought this in a long time, although I've always bought rings for the inside of a car or a door knob. As you can see in the photo I've circled it where it is. Also, I provided a video that another reviewer had in her video, what the heck is she right. I had to see for myself if it affected several cars of different types, yes, yes. I have a 2011 Mazda CX7. NO push to start but I had a ring on the ignition key part before but did on a 1998 Honda Accord. Maybe because it was older it didn't go bad but it was there after I put it on and had driven. Parked in front of the store, shopped and it wouldn't start lol, it kind of dawned on him. So I think if you have a newer machine and it won't start then your computer will read in your machine that something is wrong, I don't know why, just from the ring. But it never started. And thankfully, I just pulled it out and it worked right away. You can only submit one video and one very short one for review. By only showing when it doesn't work, I wanted to show that I took it off and it worked right away, but not everything fits.