Description Material SpongeSize 500x500x50mmQuantity 1 PcsColor Black Gray Blue Red Yellow Purple WhiteApplied to Studio Piano room Drum room Anchors room Home Theater KTV Meeting rooms Instrument rooms etc Features Suitable for sound recording studio listening room home theater KTV and all kinds of public places The sponge is the ideal sound insulation sound absorbing heat insulation material Sound absorbing sponge is on the basis of sponge for further processing acoustic inside the sponge and reflection of the increase in the number so as to achieve the noise sound absorbing effect Package Included 1 Insulation Reduce Noise SpongeMore Details