Product Description ProductSound Absorbing SpongematerialPU spongeSizeLength:0.5m Width: 0.5m Thickness 3cm or 5cmAs well as producing special specificationsColorsblack or an be customized. Density( kg/m³)From 20 to 25)PackingWoven bags or as requiredpaymentL/CportShanghai or NingboPropertySound-proofing heat-insulation and anti-agingshock absorptionandetc Applications Residence , hotel, schools, night club, ballroom, hospital, office building, recording room, studio, industrial workshop, electrical and mechanical equipment, aerospace, metallurgy, machinery, medical equipment, environmental protection, automotive, Marine, architectural decoration, household appliance;etc.Others Sound Absorbing Sponge can be anti-flaming and withadhesive tape