Pro-coustix Acoustic Panel Impaler Mounting Clips 12 PK

I bought these for hanging acoustic panels, the ones with the hard front and foam backing (see my other reviews).The clips are screwed into the wall and the panels attach to the spikes which prove to be the most effective way of hanging them.I found that carefully pushing the spikes in a slight upward angle helps to hold the panels in place, mine have been up for over a month now and I have had no problems whatsoever.Would definitely recommend these, even it they are a little expensive for what they are. I hope this helps :)