Description:2Pcs 30×30×5cm Bule Square Insulation Reduce Noise Sponge Foam Cotton Specification: Material:nvironmentally polyurethane foam Color:blue Size:30x30cm Thickness:5cmFeatures: -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:2×Insulation Reduce Noise SpongeMore Details: