I was hoping to use these to mount four Polk Monitor 30 speakers to my walls. Didn't like the idea of drilling into my speakers or fabricating some mounts so I couldn't use them. There isn't as much adjustability with these mounts as the ball end type (which might not be obvious from the pictures). The security cord mounted to the brackets broke with little effort. Not a big deal (as long as you don't drop the speaker when your mounting them HA!). Just makes you wonder why they are on there in the first place.