8 pack of 2-inch thick acoustic foam pyramid panels 12 x 12 – charcoal color. Improves acoustics of the room by absorbing unwanted reflected noise and echo during recording, playback, and mixing. Great for recording and listening spaces, including podcasting, broadcasting, streaming, home studio, drum room, control room, vocal booth, rehearsal space, and similar applications. 3D pyramid design provides ample surface area for maximum sound absorption. Acoustical performance rating: 0.45 NRC. Flammability rating: Class A (rated under ASTM-E84 testing standards). Product dimensions (single piece): 305mm (L) x 305mm (W) x 51mm (H), net weight: 0.06 kg. No parts available for this product.