Upon receiving it I was a little worried about the speaker. It was my first speaker install. But after mounting the bracket to the wall, and attaching the other bracket to the speaker, when you put the two together and tighten it down, the speaker doesn't move at all. The chains are not needed, but could be used as extra protection. I used these in a 7.1 installation for the side and back speakers. I mounted the back speakers on the wall near the ceiling. I mounted the sides much lower. I highly recommend this product.
Surprisingly capable mounts! I'm hanging a pair of old JBL 10" studio monitors with these and had no issue with the installation. My only gripe is I would like to see the front end of the mounts be made a little beefier as the downward angle I've adjusted them to puts all 42 lbs. of speaker on the end furthest from the wall.
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