24 Pack-12 x 12 x 2 Inches Pyramid Designed Acoustic Foam Panels, Sound Proof Foam Panels Black, High Density and Fire Resistant Acoustic Panels, Sound Panels, Studio Foam for Wall and CeilingClimatePartner certified

Bought these to help with the sound when recording YouTube videos. It works perfect.

I was nervous at first. They were so compressed. I let them sit out for days and they just did not uncompress. I misted them with water as they suggested. No change. Then I tried the hair dryer and that did the trick. Kind of a pain to have to do that to each one, but for the price, and seeing that they are all great now, it was worth it. These are great once they are plumped up.

These have not been installed yet so how they perform is yet to be seen (or heard). These were packaged so tightly that about 8 of the 24 did not fully expand on one edge. They have been out of the package for over a week. My plan is to use the ones that are not fully expanded at the bottom of the wall. I also hope that double stick tape will do the trick. The quality seems good.

Seem ok but no included double sided tape(even though shown in all the pictures). Really it's just the foam. Each panel is also not exactly the same size but I suppose once it's all installed it won't matter. Some panels seem to expand better than others too, but the majority seem to fully expand.

When the foam panels arrive they are flat/compressed and wrapped in plastic.Once removed from the wrapping they are supposed to expand within a day or so.The problem is that some of the panels did not expand and remained flat. Even after weeks they would not expand. Those panels are worthless and ineffective. I would have returned them but had no way to properly repackage the defective panels along with the panels that expanded as they were intended to.Bottom line is you may purchase 12 panels but only 8 will expand like they should.

Would've been nice to know the wall tiles don't come with adhesive but the shipping was extremely fast and they work great. Not the perfect solution to noise but helps to muffle loud sounds you dont want everyone to hear.

Used to insulate inside the HVAC ducts.The adhesion is surprisingly strong.The product does have an odor but that quickly evaporated.The sound insulation is adequate.After my initial review which had some concerns the seller reached out to me an offered a full refund. This is something you do not see every day and should be appreciated. Such gesture should encourage any potential customers to do business with this seller.

I was worried Caz I saw the reviews about the edges an how long it took but it was super easy just open the bag an everything puff up almost immediately some took like hour or 3 to full puff could be thicker thou