24 Pack Bass Traps Acoustic Foam Panels Sound Proof Padding 12" X 3" X 3", High Density Studio Foam for Corner Soundproofing Foam, Sound Proof Foam Panels Corner Block

Lots of people are saying that these are paper thin and they dont expand by letting them sit out, You have to put them into hot water and then wring them out. then put them in the dryer for best results. These were great, They looked great in my trunk. I used them as bass deadeners for my subwoofer so all the bass didn't absorb into my car trunk and other panels and vibrate them making my tunes sound less baller. Noticed a slight decrease in rattle when installing these so they definitely have some noise cancellation capabilities.

Good budget quality at budget price.

Good quality, but shipped in a highly compressed package, don’t wait for them to expand, fully soak them in water, squeeze out the water, and use a fan to dry them out in stacks. They will be ready to install in 24 hours. Consider using a spray adhesive, especially for ceiling installation. Do not expect these foam products to sound proof other areas, these products help reduce sound reflection after proper sound proofing that traps sound waves in the treated room. These traps also help with the cosmetic appeal of your sound room.

These do what they are supposed to. It doesn't take out the bass completely. I still wanted to have some acoustics for my drums and these work great. I hung up with small nails.

Let the foam sit for about 3 days. Each peace expanded perfectly and they haven’t budged one bit!

These worked alright but they’re too small to likely make a difference acoustically. If you’re going for a look aesthetically with wall panels and need a corner solution, these fill that need nicely.

If you buy these, don't expect them to expand on their own. They won’t. You need to soak them really well with water and that'll make them expand.

Far shipping, these are exactly as described. Easy installing