YGM Acoustic Rockwool® - Set of 4 | 40" x 20" x 3" | Sound Absorption Panels | NRC 1.0, 80 KG/M¬≥ Density | Room Isolation & Acoustical Soundproofing (Silver Grey) Pyramid 6'x3' Sheet The hassle-free installation ensures quick

The hassle-free installation ensures quick and efficient setup

It may look thin or not as expected in first look but Please follow the "How to restore Vacuum Compressed Packaging" instructions given in the 3rd Image of this product or the instruction pamphlet that you will find inside the package

Set of 8 | Size: 2' x 1' x 1" (Two feet x One feet x One feet)

Mold-resistant

YGM Acoustic Rockwool® - Set of 4 | 40" x 20" x 3" | Sound Absorption Panels | NRC 1.0, 80 KG/M¬≥ Density | Room Isolation & Acoustical Soundproofing (Silver Grey) Pyramid 6'x3' Sheet The hassle-free installation ensures quickThe Professional Rockwool Acoustical Panels are Superior in sound absorption with NRC = 1 providing clearer, more enjoyable sound environment. 3 Inch Thick High Density Acoustic Core Extra depth provides superior low frequency absorption, effectively reducing echo, reverberation, and mid bass buildup for clearer speech and tighter, more controlled sound. Integrated 1 Inch Air Gap for Enhanced Absorption Built with a rear air cavity that improves sound