Features: Acoustic FoamFeatures 1: Acoustic SpongeFeatures 2: Studio Acoustic FoamFeatures 3: Acoustic EsponjaFeatures 4: Soundproof FoamFeatures 5: Sound Proof Foam PanelsFeatures 6: Acoustic TreatmentFeatures 7: Soundproofing FoamFeatures 8: Wall SoundproofingFeatures 9: Sound Proof Wall PanelsFeatures 10: Acoustic InsulationBrand Name: TOUOModel Number: Pyramid Acoustic Foam PanelsSize: 30x30x3/5/7.5cm/12"x12"x1.18/2/3"Material: PolyurethaneHigh-concerned chemical: Urethane (Ethyl carbamate)Density: 12 kg/m³ 20 kg/m³Origin: Mainland Chinais_customized: YesCertification: CEType: Sealing StripsChoice: yessemi_Choice: yes