Acoustic Foam Panels 12 Pack 1" x 12"x 12" High Density Soundproofing Wedges for Wall Sound Proof Foam Panels Noise Absorbing Blocker and Sound-Damping Black Perfect for Studio Office Gaming Room

I am a classroom teacher. My classroom is connected to the gymnasium where we share a wall. Using these have reduced the sounds from the gym by 35%. My students and I have noticed the reduction of sounds which allows us to focus on our tasks at hand.

The material is thin thus it wont deaden sound, but it’s certainly better than nothing. I use this in conjunction with custom built absorbing panels and these serve as great compliments, especially given the size of my small studio. Love the color and design as well. It is very much used functionally as it is aesthetically. It fluffs up to its full volume in about a day after removal from the vacuum sealed packaging.

These are advertised as "high density" but there is no material less dense on earth. Worthless for any job besides being blue. I am genuinely offended by this truly bad product. The description is not only misleading but patently false and they must know it.

I put these in a door that is in my living room that faces for the rental room, and although they are fine, it helps to control noise. And they are very easy to place. Good value for money.

I love these. I bought 2 packages. I didn’t use tape or glue to hang them. I used staples.They really absorb sound

Only gave this three stars because I find the description very misleading; this is definitely NOT high-density foam. It is low to medium density at best. I can’t really speak to its ability to dampen noise because I haven’t installed them yet, but I wanted to make that comment about the density, and also the thickness; All you people complaining about how thin they are need to read the instructions. Yes, when you first open the package, they’re a little thin because they’ve been sitting in a vacuum-packed, compressed package for probably days, or weeks. After opening, mine expanded almost immediately to at least half their intended thickness. After sitting for a day, they reached what I would say is pretty much full thickness. (See photos.) The instructions spell it all out, so read the instructions!! If yours didn’t come with instructions, see the pic I posted.This product is pretty much what I expected for the money. If you don’t have very high expectations, you’ll be satisfied.

I ordered 2 of these because I didn't want to run out on this sound-deadening project. The surface area to be covered isn't a simple one since it needs cut panels in order to fit and be most effective.The surprise came when I opened the shipping box and- wondered where they were. (Compressed and in black vacuum packs, almost totally flat and invisible on the bottom of the box.) A plastic wrap around the heavier plastic holding them all so flat took a little time to cut away since I didn't want to damage any of the panels, but after puncturing and then sliding the heavy cover off they began to expand immediately. In only a few hours they were each almost full-thickness and ready to be installed. I used a caulking gun with silicone adhesive (that sticks to ANYTHING) laying them out first and snipping the odd rows to fit. It probably doesn't matter too much it there are small gaps, the sound will still be attenuated. This is a lightweight folding chamber that's large enough to fit over me when I'm sleeping (note: Adequate Ventilation!) because of the noisy fat people upstairs who not only stomp back and forth at all hours but also drop Heavy Objects on the floor - that are like Explosions! (How RUDE!)Ahhhhh! The benefits of not having to listen because there's a solution to excess noise!

Very good product