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6 Pack 1.5 X12 X12 Acoustic Foam, Sound Proof Egg Crate Foam(Most Soundproofing Design), Upgraded Acoustic Panels, Fire-Retardent Sound Proof Foam Panels for Walls, Doors, Sound Foam Made by WVOVW
Egg-Crate Is the Most Soundproof Design The Principle of Acoustic Foam is that when sound contacts with the foam, a portion of sound is reflected, while others get inside the foam, where the sound undergoes friction and reacts with the Sound-Absorbing Material, generating heat. Compared to other shapes, the advantage of Egg Crate shape lies in its increased surface area for sound reflection and its intricate network structure that provides better conditions for friction and heat generation. Fire Resistance & Non-Toxin Safety Compared to other panels

Price is $20.00
Price: $19.99