Each 6x3 roll of BassBloc™ Bass Absorber covers an area of 18 sqft :

BEST FOR SOUND AND BASS ABSORPTION: BassBloc™ Bass Absorber Acoustic Foam Panels are made with a combination of acoustic polyurethane open cell and closed cell technology, increasing its sound absorption by a factor of 10. The sound gets trapped and absorbed simultaneously. It excels at absorbing bass or low-frequency sounds.
SOUND ISOLATION: A 100% wall coverage will isolate the sound up to 20 dB, reducing the relative loudness by 75%. A limited wall coverage would only result in acoustic treatment of the space.
NOISE REDUCTION COEFFICIENT AND DENSITY: NRC of the product is 0.95 as tested by ARAI under the compliance of ASTM C-423/ISO 345. The density of the product is 100kg/m3, higher than any other acoustic foam panel. Each roll is 6'x3' with a thickness of 40mm. This product is free of chemicals, toxins and odour.
APPLICATION: BassBloc™ Bass Absorber is best to install under any surface like gypsum tiles, acoustic foam, curtains etc.
WARRANTY & CERTIFICATION: MMT Acoustix® offers a warranty of 1 year on every product and each one of them is certified by SGS, ARAI, and ISO for their quality and customer satisfaction.

BassBloc Bass Absorber | 6x3 feet, 40 mm