https://arrowzoom.com/collections/pyramid/products/arrowzoom-pyramid-series-black-gray-bundle-kk1034
Arrowzoom Acoustic Pyramid Bundle Black x Gray Sound-Absorbing Foam. Fire-Retardant Soundproof Foam. Size: 25 X 25 X 5cm, 50 X 50 X 5cm. Bundle:12pc/24pc/48pc. Free Shipping. In the specialized market of soundproofing and acoustic treatment for homes, Arrowzoom is a market leader and reputable brand. Our goal is to find solutions to common problems with noise for various people and businesses. Whether you're a professional or first-time homeowner who is unfamiliar with acoustic products. Our goal is to become the top brand in the world of acoustical treatments. with products that are both affordable and efficient to address any problems with home or household noise pollution.