[Easy to install, save time and money]With self-adhesive design, you just need to tear off the top liner on the back and stick the sound panel to the wall. If you have seen other product introductions before, you will know how easy it is to install our acoustic panels. Also, you don't need to buy any extra double-sided tape or glass glue, saving you time and money.[Balanced Wall Tile, Small but Not Simplified]Balanced Acoustic Wall Tile is a decorative sound absorbing panel with a felt surface in a unique pattern and color. You can add fun, cool, modern creative designs to any space where sound matters, enhancing acoustic performance and visuals.[SAFE MATERIAL AND HIGH DENSITY]Using high quality Polyurethane material, odorless, B1 class flame retardant, safe to breathe and touch. Easily cut with a knife to make different designs.[What is the effect] Sound panels help reduce unwanted reflected sound in any room of your home or building, they are lightweight and easy to install on walls, doors and ceilings. Helps reduce background noise, echoes, time (RT), and reduce standing waves (background noise).size:about 30x30x1cm Material:Polyurethanecolour:dark greyPackage Contents:12 x Acoustic Foam PanelsOnly 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.