1.Made from high density polyester felt fabric, our soundproof wall panels do well in reducing noise, eliminating sound impurities and improving speech intelligibility. odorless, non-toxic, corrosion resistant, and fade resistant.2.The installation of sound foam panels must be very simple No special tools or materials are needed Our sound absorbing panel can be attached to a variety of surfaces, and thus, you won't have to wrestle with to get it where they need to go. Please ensure the surface is clean, dry and free from dust before starting. Then, simply attach the panels with heavy duty adhesive taps, spray adhesive, and nails (not included).3.our sound proof foam panels great for wall decoration and acoustic treatment Crafted using chamfer design, the sound panels bring better protection to your family and friends such as anti-collision, anti-scratch and non-slip.4.Professional sound dampening panels are great for spot treating sound on walls in your studio or office. Special solid and mixed color soundproofing panels are the best choice to decorate your recording studios, control rooms, offices home studios, home theaters, home offices.5.Good looking soundproofing panels play an important role in wall art in your favorite space Colour:BlackMaterial:PolyesterSize:Side length: 17.5cm/6.89inchPackage Contents:6 * Hexagon Acoustic Panels Only the above package content, other products are not included.Note: Light shooting 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.