Dense Polyester Soundproofing Acoustic Panels Designed For Sound Absorption - 6 Tiles Per Pack - Great For Noise Treatment In Studios, Broadcast, Gaming, Office & More (Marble Grey)

I ordered these because i use a high speed sewing machine and my downstairs neighbors told me they could hear it. I think they work because they haven't mentioned it again. There are 6 to the box. I'll probably order more to secure them down on my wood floor. They are thick, and easy to install. If you need these to cut the sound down, they are good.

Wasn’t large enough