ITEM NAME:4 Pack- Acoustic Panels foam Engineering sponge Wedges Soundproofing Panels R8E6 4 Pack- Acoustic Panels foam Engineering sponge Wedges Soundproofing Panels R8E6 100% brand new and high quality. Deformation rebound rate, long service life. Waterproof, anti- moisture, good air permeability. Anywhere to help block sound and prevent echoes inside the room. These Wall Panels provides strong noise reduction, Good for studios, recording studios, vocal booths, control rooms. Use: Perfect for use on corner walls, corner ceilings, etc. Material: Polyurethane foam Size: 30*30*2.5 cm/11.81*11.81*1.1 inch Color: Black Family noise control (walls, pipes, ceilings, etc.) Workplace noise control (light walls, partitions, conference rooms, etc.) Entertainment noise control (KTV rooms, walls, ceilings, floors, etc.) Industrial noise control (factory walls, roofs, equipment, doors, control room, etc.) Package Contents: 4pcs * Soundproofing Foam Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..4pcs Soundproofing Foam. Material: Polyurethane foam. Anywhere to help block sound and prevent echoes inside the room. Deformation rebound rate, long service life.