Bxi Sound Absorber, 12 X 12 X 3/8 Inches 16 Pcs\. High Density Acoustic ?SPECIFICATION?: High Density - 200kg/m3; Dimensions - 12 X 12 X 3/8 inches(cutting tolerance: 2%), pack of 16, covering 16 square feet; Weight - 5.6 pounds of 16 pieces; Material - Polyester Fiber ?IMPROVE SOUND QUALITY?: These durable sound panels are excellent at absorbing sound energy, reducing reverb, echo and mid high frequency noise; Average absorption coefficient: 0.78; NRC(noise reduction coefficient): 0.87 ?MULTIPURPOSE?: These sound insulation panels are ideal for sound treatment and decoration on ceiling and wall; Pefect for recording studios, gaming room, home theater, home studio, office, vocal booth, podcast, youtuber and more ?ECO-FRIENDLY?: Odorless, Non-toxic, Formaldehyde-free, Class B1 Flame Retardant, Corrosion Resistant, Anti aging, Safe acoustic tiles for indoor use ?EASY TO INSTALL?: These sound dampening panels are cuttable and easy to mount using construction adhesive or 3M vhb double sided tape(sold separately)