56 Pack Acoustic Foam Panels 1" x 12"x 12" Saiqiang Sound Proof Panels Black Soundproofing for Wall Fire Resistant Wedges Insulation Noise Absorbing for Office Home Studio

I mean, they’re okay. Just be ready that this material doesn’t really stick to many surfaces, so I used a hot glue gun. Also, the sizes are different, and some of them stay flat and don’t puff up. But for aesthetics, they’re good.

Dear customers, I have done deep research looking for the best acoustic isolation cost benefits. I noticed many complains about this cheap product regarding to deformation after unboxing. I would like to share my experience with you. I decided to buy this product which was the cheapest I could find and take my on risk. When I received the product from Amazon, I unboxed the packaged and release the acoustic foams from the vacuum bag I got disappointment after 48 hours when I saw more than 90% of the foams with different level on deformation on the borders. Luckly there is a one-page instruction saying to use the dryer machine to expand the foam and get them in a perfect shape. Following the instruction, I could recover 70% of the foams just putting the foams in the dryer machine medium level for 5 minutes. I realized that some foams could not be recovered 100% and I put the remaining foams deformed into the dryer machine medium level for 5 minutes more and repeated the process for couple more time. In the end I could get 90% of de foams perfectly expanded total 48 of 56 foams. The remaining 8 foams I would say that they are in a good shape not perfect even being slight deformed. Well, that is my experience, and I hope that I could have help someone to take the decision on buying this kind of Acoustic Foam

Not the best honestly I have had better results buying better more dense foam and building my own

Out of 56 pieces, around 6 were deformed at sides.

Low-density foam. Panels don't have a major effect on sound dampening.