Package Includes: - 6 Pack Hexagon Beveled Edge Dark Gray Acoustic Absorption Panels Products Features: - Coverage: Each package comes with 6 panels and can cover up to 0.54 square feet of area. - Density: Each panel is 210kg/m3 dense. - Eco-Friendly: Each panel is made of 100% Polyester Fiber. - Easy to Install: Can be installed by anyone! Simply attach 3M Double Sided Tape (not included) to the back of the panel and adhere in the position desired! - Easy to Remove: Simply detach each panel and reinstall to the new desired location - no holes in your walls! - Safe for All: B1 Class Flame Retardant, odorless and doesn't alter air quality making it safe for adults, kids, and pets! Experts: Widely applicable: professional sound control, noise reduction, sound processing, noise reduction-professional recording studio, school, recording studio, home decor, stage, rehearsal room, concert hall, podcast, church, home theater, vocal studio, house Used in studio, office, manhole, kennel, public toilet etc. Acoustic Panels in ½” are pinnable and digitally printable, delivering a noise reduction coefficient (NRC) of 0.35 – 0.90, depending upon installation and distance from the wall. Environmental Protection: Formaldehyde release a quantity standard 1.5 ㎎ / 1 or less, test results is 0.05 ㎎ / 1. Sound Absorption: frequency 5000Hz, 1000Hz, 2000Hz, average absorption coefficient: 0.8, NRC: 0.9, each panel has passed the strict environmental protection test of Swiss SGS, no formaldehyde, E0 level , sufficient number installed correctly The panels in the space significantly reduce noise, remove sound impurities and improve voice intelligibility Woven sound provides great quality, great service, great price, this product is what you are looking for!