FASHIONABLE APPEARANCE:This unique sound insulation board adopts hexagon design, which can not only reduce and absorb unwanted echoes, waves, reverb and flutter echoes, but also play a role in decorating the wall surface.EASY TO CUTTING AND INSTALL : Easy to cut with a sharp knife, You could create different styles of decorative wall art in your favorite space And Sound proof padding easy to install, simply attach spray adhesive or double-sided tape (not included) to the back of each panel and adhere to the desired position.ECO-FRIENDLY AND INDOOR :The sound panels are Odorless, Non-toxic, and Formaldehyde-free. Excellent acoustic treatment for on-site sound processing on the wall of a recording studio or office-suitable for recording studios, control rooms, office home studios, home entertainment theaters, home offices.HIGH DENSITY AND ECO-FRIENDLY: Made with Polyester Fiber, it is both safe to breathe in and touch, making it great for any location in the home or studio, it's safe for adults, kids, and pets IMPROVED ACOUSTIC QUALITY : These noise-insulation panels are multi-purpose, it can be used for professional studios, rehearsal rooms, concert , podcasting, churches, home theaters, vocal booths, home studios, offices, man caves, dog kennels, utility closets and more. By deadening unwanted sound using absorption panels, you can make other sounds much clearer.Colour:blackMaterial:polyester fiberSize:17.4 x 20 x 0.9CMPackage Contents:16 x sound insulation cottonOnly 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.