Features: -Soft sponge, no dust, high density; -Sound effects, suitable for studio and KTV etc; -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. For example, BASSTRAP can be combined with the other products, consisting of a broadband absorber, the effect is very good. Specifications: Material: Sponge; Size: 300x300x50mm; Color: Black/Blue/Yellow/Grey/Red/Coffee; Weight: 50g; Used for: Studio, Piano room, Drum room, Anchor room, Home Theater, KTV, Meeting rooms, Instrument rooms, etc. Note: Please allow 1-5mm error. Please note to us if you want a certain color of this product. Or we will send this product in random color. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package included: 1x Soundproofing foam