Features: -Made of 150 kg/m³ high-density polyester fiber, with an NRC value as high as 0.92, it can effectively absorb high and low frequency noise. -There are 12 12in by 12in foam boards in total, providing 11.6 square feet of coverage, suitable for walls, ceilings, doors, windows, etc. -Featuring an advanced self-adhesive design, it can be installed without any tools. -It has a wide range of applications and is suitable for living rooms, bedrooms, offices, studios, etc. Specifications: Color: black Size: 30*30*0.9cm Material: non-woven fabric Package Included: 12x Sound insulation panels .
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