Jiggy Jay's Acoustic Treatment Panels, (12 Pack) 12" X 12" X 2" With Air Gap Channel Technology, High Density, Sound Absorption, Fire Resistant Foam Panels

I used these behind my fridge and it made it WAY more quiet. Love them!

This item works well but keeps falling off the wall

Didn’t even use cause they smelt so bad

..and rethink your product because these are pretty much useless. First off, they come extreme vacuum sealed to where they are all smushed down to the size of a think legal pad of paper. When you get them out you realize each one really is about as thin as a piece of paper. It takes many days for air to attempt to reform them but since the foam is so porous and definitely NOT dense foam, that there is nothing substantial for the air to reform. You could probably stack the entire pack on top of each other and it still not do a thing for sound absorption, deflection, proofing, etc. I could get better foam out of the Amazon packing then these. To the manufacturer, you need to try again because you failed on this product.

I'm not sure the design of these panels is better than the more standard egg crate, but they seem to work well. The adhesive backing makes installation easy. They're a little bit harder to get a clean cut on with the design of the folds.