RESON8 Acoustic Foam | DIY easy PEEL AND STICK foam adhesive | Sound Foam Panels | 2"x12"x12" Pyramid Shape | 2" Acoustic Tiles | 6 pack | Soundproofing (Burgundy)

These worked perfect for my project. I was trying to quiet a mechanical piece of equipment in a box and they were easy to use and did the job.

Fantastic. Can’t say enough good things about these. On par with Auralex. Creates true dead space that is ideal for home recording and mid to even high levels.

Works exactly as advertised. My son wants even more for his room when he Twitches.