Did not work

I have to admit, I was very disappointed. I already had been using a O's 4" Chrome round HC4 for some time on one of my bass drums with no trouble. But this time the outer part of the ring (chrome colored) got torn of by the live mic at the first gig I used it on. And that even though I followed the instructions to apply it on the head very carefully. But I might try it one more time because I didn't have any problems with the first ring. But for now the inner part of the ring (the counter ring to the outer chrome one) probaly will do the job of protecting the edges of the whole in the resohead. But it doesn't look as nice, of course.