12 PCS Acoustic Sound Foam Panels 12 x 12 x 2 Inch Wall Soundproofing Panel Noise Proof Pyramid Studio Foam, 6 Red & 6 Black

I received the panels in a very tightly vacuum packed package. The blue panels sprung to the proper thickness quickly. Two days later, the black panels are still flat and show no signs of returning to the proper shape. I spent extra on these panels because I thought that the money would be well spent. Don't do it, this is China crap and it shows. I suspect that lower-priced panels will do as good a job and cost less. Never again!!!!

Great product! They come vacuum sealed but once they’re open they expand. If some areas don’t expand right away. Wet that area, and twist the water out. Throw the foam pads in the dryer and they will fluff up and dry. I have 48 of these pads and all of them look great after I “fluffed” them.

2 stars because 5/24 squares never fully puffed up, but the rest are just fine.These came in a tightly wrapped vacuum package. I opened all of them immediately and spread them out in my to absorb air and puff up. I put them in my garage because they were a little stinky (the smell went away eventually, was likely off-gassing)Of the two packages I received, about 5 of the the tiles never puffed all the way up evenly after 3 weeks. Pretty disappointing considering the price of these.Pictured are two perfectly good ones next to the 5 faulty squares.

Quality wasn’t good . I ordered blue and they sent red. Also all the red cubes were ironed and flat . It would never blow up and come to any form or shape . Black ones were good … attached some pics .

After opening, my black panels didn’t take much time to fully expand. My blue panels however took much longer to grow. I woke up the next day, and 4/6 of the blue panels were in perfect condition. Unfortunately, 2 of them were completely flat, and still won’t expand. Of course as inconvenient as this is, I still have 10 panels, and It’s unlikely many will encounter this issue. Overall, they work well, and are priced great.