24pcs 250X250x5 0mm Studio Acoustic Foam Sound-Absorbing Absorption Treatment Panel Protective Plate Sound SpongeSoft Sound Insulation, No Dust; The sound-absorbing sponge has a beautiful appearance and good acoustic performance. Its greatest feature is due to its shape, there is almost no diffusion, making your voice more dynamic. Suitable for: Recording Studio, Piano Room, Tympanum, Anchor Room, Home Theater, KTV, Meeting Room, Musical Instrument Room, etc. Color: BlackMaterial: Polyurethane Size: 250x250x50mmPackage Contents:24 x Soundproof FoamsOnly 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 error is +/- 1-3cm.