Feature:1. Sound Insulation Principle: This acoustic foam is not by blocking the transmission of sound, but by absorbing sound to eliminate and background sound to achieve the sound insulation effect.2. Convenient Installation: These acoustic foams are very easy to install, you can easily complete the installation process under normal operation and friendly to novices.3. Noise Pollution Reducing: After installing the acoustic foam, you can enjoy the comfort and pleasure of the environment with reduced noise.4. Soft Fabric: The acoustic foam is made of polyurethane and is very soft, harmless to human body so you can use them relievedly.5. Applicable Scenarios: Can be widely used in different scenarios and will improve the sound in recording studios, offices, rehearsal spaces, home theaters, game rooms, etc.Specification:Item Type: Acoustic FoamMaterial: PolyurethaneUse: Recording studio, drum room, office, factoryProduct size: 12 x 12 x 24cm / 4.7 x 4.7 x 9.4in .Package List:10 x Acoustic Foam