18 Pack Acoustic Panels Self-adhesive, High Density Soundproof Wall Panels, 16"×12"×0.4" Sound Proof Panels for Walls, Upgraded Brick Sound Absorbing Panel for Door, reccording Studio, Ceiling White

Installed on my wall 1 year ago and they are still exactly the same!

Not a good representation of the product. I was attempting to cover a large wall with this. Unfortunately, it is not even at all each piece has a slight tilt causing the wall to turn out funny looking. Trashed a whole container of product. And returned the rest.

Will ruin your wall at time of removal. You have to force the panel off and the glue stays on the wall. Goodluck getting your rental deposit back at time of your move out.

worked great for the room and reducing the sounds

One pack of these was perfect for covering the inside of my closet door that I turned into a sound booth. Note that the 16" inch dimension makes it perfect to cover the width of a 30-32" inch door better than the 12" inch squares of other products that will leave you needing to cut more tiles. Just to be clear, these will not "sound proof" your wall or door. The title of this product is misleading. These are more accurately called "sound treatment" panels. What they do is cut down on the echo in your room. If you need to prevent outside sound from entering, you will need something entirely different. I knew this going into it and very happily got what I expected. But others less informed might be dissappointed. If you want sound proofing, you should look at heavier and denser materials such as MLV (mass loaded vinyl). For the purpose of "sound treatment" I would absolutely get these again if I had to do it over. The added bonus is this is made of the same felt material designed often used as a bulletin board which does nicely.

These are perfect for setting up a space for the cello players in my home. They arrived clean, and in pristine condition. The tiles looked like white bricks, very nice. They were large and covered a lot of wall space. I would buy these again.

This does not work AT ALL! Not as described