YGM Acoustic Rockwool® - Set of 4 | 4' x 2' x 3" | Sound Absorption Panels | NRC 1.0, 80 KG/M¬≥ Density | Room Isolation & Acoustical Soundproofing (OG Black) Brown Door Insulation Kit for Sliding Noise Reduction Gap Each panel measures 1 foot

Each panel measures 1 foot × 1 foot with a 10 mm thickness

Coverage area varies by selected pack size

NRC: Made using high density Acoustic Polyurethane

better is acoustic

Matches With Almost Every Door Color

YGM Acoustic Rockwool® - Set of 4 | 4' x 2' x 3" | Sound Absorption Panels | NRC 1.0, 80 KG/M¬≥ Density | Room Isolation & Acoustical Soundproofing (OG Black) Brown Door Insulation Kit for Sliding Noise Reduction Gap Each panel measures 1 footThe 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