Description: 45!#!amp!*!times;45!#!amp!*!times;5cm Black Triangle Insulation Reduce Noise Sponge Foam Cotton   Specification: Material:environmentally polyurethane foam Color:black Size:45!#!amp!*!times;45!#!amp!*!times;5cm Thickness:5cm   Features: 1.Suitable for sound recording studio、 listening room、 home theater、KTV、 and all kinds of public places. 2.The sponge is the ideal sound insulation、 sound-absorbing、 heat insulation material. 3.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 Sponge   More Details: