Arrowzoom Pyramid Acoustic Foam Studio Absorbing Tiles Wall Panels (Black, Pack of 12,50x50x5cm)

This will come vacuum pressed. I ordered 4 packs, total 48 pieces. Around 7 pieces fully expanded after soaking in water and dry it. Tried everything to expand the remaining, some remained pressed and some half expanded and can't be used.Some pieces are not equal length, around 1cm difference. You will have to stretch it while sticking it on wall.I had better experience with smaller pieces but this one failed.

I expected Arrow zoom to be of decent quality based on what I'd seen on the internet. But what i recieved was a squished & squashed stack of panels which were mostly deformed. Some usable, some went down the bin.I didn't have time and hence, I ended up buying acoustic panels from the store at a mall nearby. Disappointed.

Very impressed with quality and material, great package, no smell, fast delivery. The foam took back its shape within maybe 1 hour.

Repurposed packaging foam. Only good for minor accounstics WILL NOT SOUND PROOF AT ALL.

It took a while to get here, but no more ecco in my apartment which resulted in less noise over all.