1、Polyester Fiber: Sound absorbing cotton made of high quality polyester fiber material will not produce unnecessary noise. 2、Safety Sound Absorbing Panel: The sound absorbing cotton is safe to breathe and touch, which is suitable for any position in the home or studio, and is safe for adults, children and pets. 3、Beautiful Design: Acoustic panels with beautiful appearance and design are very suitable for individuals to reduce and absorb unnecessary echoes, waves, reverberation and flutter echoes and wall decorations. 4、Easy to Install: Anyone can install. Just tear off the adhesive on each panel and paste in the desired position. 5、Application: These sound insulation panels can make the office quieter, recording cleaner, and can be used in professional studios, offices, utility closets, etc. 12 x Sound Absorbing Panel Item Type: Acoustic PanelsMaterial: Polyester FiberColour: Dark GreySingle Size: Approx. 30 x 30cm / 12 x 12in Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.