These panels are used as soundproof foam,sound proof foam,soundproof,acoustic panel,studio acoustic foam,acoustic foam home studio,sound proofing foam,acoustic foam panel,acoustic foam sheet,acoustic foam set,acoustic panel home studio,sound acoustic foam,diy soundproof room,sound absorber room wall,noise foam,aqastic foam,acoustic foam home These Pyramid Foams have a thickness of 2" with Pyramid design to maximise absorption as well as diffusion of sounds in the high and mid frequency range Our sound proof foam panels are used to remove reverberation and sound reflections, different from fiberglass and rock wool material, polyurethane foam which is made of 100% polyester fiber is safe enough to touch and breathe in More Comfort/Less Stress - The most common problem in large rooms with high ceilings is that of echo. An echo creates multiple wavelengths of retracting sound waves that interfere with the conversations in the room. Acoustic foam panels absorb unwanted sound such as echoes and noise from surrounding areas, making other sounds clearer.