Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si HEXAGON SHAPED&BEVELED EDGE : It is the honey comb that makes sound proof foam panels great for and acoustic treatment! Crafted using chamfer , the sound panels bring better protection to your family and such as anti-collision, anti-scratch and non-. Good looking soundproofing panels play an important role in wall art in your favorite space! SOUND QUALITY: Made from 215kg/ high density polyester fiber cotton, soundproof wall panels do in reducing noise, eliminating sound impurities and improving speech intelligibility. We on using high quality soundproofing material to it's retardant, odorless, corrosion resistant, and fade resistant. Furthermore, the acoustic foam panels achieve of noise reduction coefficient: 0.92 and absorption coefficient: 0.8! WIDE APPLICATIONS: Professional sound dampening panels are great for spot treating sound on walls in your studio or office. mixed color soundproofing panels are the best to decorate your recording studios, control rooms, offices home studios, home theaters, home offices. It's safe to Press and breath in because the odorless and friendly soundproof material. EASY TO INSTALL: No tools or materials are needed! perfect cutting sound absorbing panel can be attached to a of surfaces, and thus, you 't have to wrestle with to it where they need to go. the surface is clean, dry and free from dust starting. Then, simply attach the panels with adhesive, spray adhesive, and nails (not included). Good sound absorption characteristics: If you are mixing in a studio, you must reduce the sound. Unnecessary noise during recording will destroy it. The sound-absorbing board can the sound produced by low frequency, middle frequency and high freque, which is suitable for recording. size:17.5cm Material:Polyester cotton colour:Silver grey+white Package Contents: 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.