52 Pack Acoustic Panels 1 X 12 X 12 Inches - Acoustic Foam - High Density- Soundproof Studio Wedges - Charcoal

Work great for intended purpose but, dont like them?Use these while stacked to pop your back lmao. Just enough cushion.

Great product. Good price very effective at removing unwanted noise. Had lived in a pre-war house with very thin walls and very noisy neighbors. This product definitely tuned all that out. Also, it’s a great price!

Ok. Let me start by saying these arent top studio quality acoustc pannels, those will set you back a lot more than these. HOWEVER, for the price and the quantity you're actually getting a good deal out of this. There's some reviews saying these didn't expand or that they came defective, and as someone who's bought this product twice, I can confirm that a handful indeed do come thinner, but out out of the 2 times ive bought this product, only the second batch I ordered had defective panels, and it was only 4 or them, I counted. As for the foam not growing to its proper size, I didnt have any issues with that. I put then in a spare room for a few days and let them sit there untouched and they expanded just fine. Addressing the thickness of the foam, I actually measured it and there are 3cm from the base of the foam to the top of the wedge, which is about 1 inch, exactly as advertised (bear in mind im excluding the defective units from this claim, as these arent even 1cm thick). The panels also arent all the same size, although most do reach 31cm each side, which is the equivalent of 12in. So to restate my point, this product has great value for the price. The thickness of the foam is as advertised (1 inch or 3cm), the panels, although very slightly varying in their dimensions, are generally 12x12in (or 31x31cm), the faulty units are few and can be counted on a single hand, and they do indeed expand (WITH TIME) to their advertised size.I want to add a section to advise those who cannot get these to stick on their walls. FIrst off, any double sided adhesive tape or command strips will not stick. These will stick to the wall just fine, but the foam is too porous and will come off extremely fast, lets say, 10-15 minutes from the time you stuck the panels to the wall. Instead, I recommend using a heavy duty constructive adhesive, such as DynaGrip (I tried several brands, and even though they mostly all work the same, I feel like this ones a tad more sturdier than its alternatives), which comes both in a squeezing tube and and a tbe that requires a pump gun or whatever theyre called. I add glue in dollops, in approx. 1x1x1cm size, 3 times on each side of the panel, ergo 4 on the corners and 4 in the spaces between the corners (so 8 dollops of adhesive) as well as the middle, Im sure you could get away with just the corners and the centre, but I found that this way the panels will not fall even if you lean your entire body on them (I tested this, and my cat also jumped on one and the panel didnt even budge, and she is one hell of a chonker). With the adhesive on the foam you can spread it with your finger or a stick or a paint knife, or anything really, and then just stick it to the wall. After that just press the panel on each of the zones in which you put glue (not for a long time, just give each zone a quick press and thats it, do it twice if you want to be cautious). The adhesive sticks on cement, wood, drywall, and even on metal. It will even work if you want to stick your panels to the roof, no problem with that, just make sure you give the roof panels a hard squeeze to make sure gravity doesnt tear it off while its drying.If youre looking to make a home studio or just fix a terribly sounding room, this is an awesome deal that wont break your bank. They actually d help the sound. REMEMEMBER, these will NOT soundproof your room, these will only treat the echo you can hear inside a room. I recommend complimenting these panels with carpets and rugs, as well as corner bass absorber blocks.Im uploading images of the panels individually, how they look hung up on a wall, what the defective units look like, the measured thickness of the foam, the adhesive I used to hand mine up, and the way I spread the adhesive for anyone that requires help with that. Also, I've already had these panels on my walls and roof for 4 weeks, still holding up perfectly.4 stars out of 5, the missing star is due to the defective units.

The panels arrived in time and I aired them out for 24 hours but didn't really detect any strong chemical odors initially. The panels did puff up a bit, I applied them with a combo of staple gun and 3m spray adhesive. It does soften the room's natural ring or reverb, they won't block out sound entirely but softening the room is very helpful. The price is good for how many panels you get. Awaiting the second shipment now so I can finish the studio.

Hey, I have never used an item like this before. I am using it to block sound from neighbor next door.They have been good.

I built a pine anechoic box and lined it with this product.Note: Do NOT open the bag at all until you are ready to have it expand because as soon as you do, even a bit, it expands a lot.It is soft foam with /\/\/\/\/\ shape, cut slightly larger than advertised. None of the panels failed to expand, and did so quickly. Double-sided tape does NOT work very well.To test how effective it is at dampening sound, I turned on both my window fan, which is noisy and 3' from my box, and my standing fan, which is 5' away, and used a phone app to measure the dBA. I installed them with standard white glue/stick glue or Gorilla double-sided heavy-duty tape but there was almost no sound dampening. I doubled the foam on three sides and bottom, but not the lid side or the top simply by placing them in the box abutting the installed ones.On top of the box, fans on: 56 dBAInside of the box, closed, fans on: 47.4 dBAThat's only, what, a 16% improvement? I have no idea how people got 50% or more! One person mentioned putting a space between the foam and the wall, so I may work on figuring out how to do that.At this point, given the results, I wouldn't recommend this product. At least I've still got a lot of it and I hope I can figure out a solution using the rest to make it worthwhile.Update11/3/23 I was contacted this week by the vendor, Adam Woods of DASolutions, saying that they wanted to make it right. They offered me a material replacement or a $50 Amazon gift card code. I asked about the former but, instead, the person responded with information about the code. Several things were amiss in this exchange aside from the incorrect response:1) The emails came from a gmail account, not from Amazon or the seller via Amazon.2) The email came 2.5 months after I put up the review. I guess they were searching for my email address.3) There is suspicious text in the emails.4) Deleting a review for compensation is a violation of Amazon's terms for vendors.5) All of the 1-3 star VENDOR reviews have been crossed out with a note that apparently comes from Amazon taking full responsibility, despite the fact that the product is NOT fulfilled by Amazon (it comes from China).6) I cannot put up a vendor review because it directs me to a completely different vendor.

Made my room sound proof and easy to use. Just dip in water and let dry as package instructed.