Improve sound quality: made from high density Polyester cotton, these soundproof wall panels do well in eliminating sound impurities and improving speech intelligibility; Quality soundproofing material it's flame retardant, odorless, safe, rustic resistant, and fade resistant, giving you nice use feeling Simple color assortment: sound proofing padding set has simple color assortment, easy to match decoration styles, suitable for decorating your recording studios, control rooms, offices, home studios, home theaters, home offices and more; It is nice for spot treating sound, safe to Press and breath Easy to install: the beveled edge soundproof padding can be attached to a of surfaces, such as walls, doors, , ceiling floors and more; Please the is clean and dry before starting, then, simply attach the panels with adhesive taps and nails (which are not included) Useful and practical: with nice acoustic control, sound suppression, acoustic processing, and noise reduction functions, the high density dampening panel is to reduce the waves, reverb and flutter in small and medium-sized rooms, improving the sound quality of your room, but it 't block the loud sound from the other room Wide spread use:With professional acoustic control and acoustic processing, The dampening panel is suitable for home studio, home entertainment theater, home office, recording studio, game room, office meeting, music or video production and other public places. Features: This hexagon acoustic panel has nice sound absorption, sound insulation and heat insulation function. The soundproof wall panels can be easily installed. Please the is clean and dry before installation. Side length:17.5cm Color: dark gray + silver gray + white Material: polyester fiber cotton Package Contents: 6 x Dark gray sound insulation board 6 x Silver gray sound insulation board 6 x white sound insulation board Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.