Product Details:

• Widely used-For professional acoustic control, sound absorption, and reverberation reduction. By attenuating excess sound waves to obtain better recording effects, it is widely used in concert halls, recording studios, home theaters, offices, etc.
• High-quality material-High-density polyurethane material. 
• Wedge surface-The wedge surface of -12 grooves increases the contact area with sound waves, and the sound absorption effect is better than other shapes of surfaces.
• Easy to install-It only needs to use spray glue to evenly spray the glue on the back of the sound-absorbing cotton, which can stick firmly.
• Size:12x12x2 Inches (35x35x5cm)
• Material: Polyurethane
• Color: Black