Package Included: 6 x Soundproof foam Features: -Flame retardant -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. Specifications: Material:Sponge Size: 300x300x50mm Quantity: 6 Pcs Color: Black/White/ gray（Please leave a message or random） Applied to: Studio, Piano room, Drum room, Anchor's room, Home Theater, KTV, Meeting rooms, Instrument rooms, etc. Note: 1.Please allow 1-5mm error. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! 3.The compression packing of the product can be restored after a period of time and the compression effect is better without worrying about quality problems