4Pcs 30x305cm Square Insulation Reduce Noise Sponge Foam Cotton

4Pcs 30x30?5cm Square Insulation Reduce Noise Sponge Foam Cotton
Material:nvironmentally polyurethane foam Color:red black Size:30x30cm Thickness:5cm #NAME? for
sound recording studio listening room home theater KTV and
all kinds of public places. #NAME? sponge is the
ideal sound insulation sound-absorbing heat insulation material #NAME? sponge