Description:25X25X5cm Black Square Insulation Reduce Noise Sponge Foam Cotton Specification: Material:nvironmentally polyurethane foam Color:black Size:25x25cm 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:1!#!amp!*!times;Insulation Reduce Noise SpongeMore Details: