30x30x6cm Acoustic Wedge Foam Studio Acoustical Soundproofing Sponge Black Features: - 100% brand new and high quality.- Deformation rebound rate、 long service life.- Waterproof、 anti- moisture、 good air permeability.- 2.5" Egg Foam is most effective on mid-to-high frequency ranges.- 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. Specifications: Material: PolyesterSize:30*30*6 cm/ 11.81*11.81*2.36"Color: BlackQuantity: 1 pcsProduct Care: Occasional Vacuuming of Dust Packaged Included: 1 x Soundproofing Egg Crate Foam