Please note, this item ships from an international seller. Expected delivery is 10-15 days. Sound Proof Cotton Acoustic Foam Stop Absorption Sponge Studio Ktv Soundproof Specifications: Material: Sponge Size: 25x25x5cm Applied to: Studio, Piano room, Drum room, Anchor's room, Home Theater, KTV, Meeting rooms, Instrument rooms, etc. soft sponge, no dust, high density; The sound effects, suitable for studio and KTV etc; Pyramid sound-absorbing sponge with beautiful appearance and good acoustic characteristics, its greatest feature is: due to its pyramid shape, it provides little diffusion, it makes you sound more dynamic. It may, for example BASSTRAP combined together with the other products, consisting of a wide band absorber, the effect is very good. Note: Please allow 1-5mm error. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 5 x Soundproof foam Description: Our products will be sent out after multiple inspections. If you receive bad products, please contact us in time If you have any questions about the product, please feel free to contact us