FASHIONABLE APPEARANCE: This unique sound insulation board features a hexagon design that helps reduce and absorb unwanted echoes, waves, reverb, and flutter echoes, while also enhancing the wall's appearance. EASY TO CUT AND INSTALL: Can be easily cut with a sharp knife to create custom decorative wall art. The soundproof padding is simple to install—just apply spray adhesive or double-sided tape (not included) to the back of each panel and attach to the desired surface. ECO-FRIENDLY AND INDOOR SAFE: The sound panels are odorless, non-toxic, and formaldehyde-free. Ideal for acoustic treatment in various indoor environments such as recording studios, control rooms, home studios, home theaters, offices, and more. HIGH DENSITY AND SAFE MATERIAL: Made from polyester fiber, these panels are safe to touch and breathe around, making them suitable for homes and studios with adults, children, and pets. IMPROVED ACOUSTIC QUALITY: These multi-purpose noise insulation panels are effective in professional studios, rehearsal rooms, concert halls, podcasting spaces, churches, home theaters, vocal booths, offices, and utility areas. By absorbing unwanted sound, they help improve overall sound clarity. Color: White Material: Polyester fiber Size: 17.4 x 20 x 0.9 cm Package Contents: 16 x Sound insulation panels Note: Light shooting and different displays may cause slight color variations between the image and the actual item. Measurement allows an error of +/- 1-3 cm.