Acoustic panels with -adhesive design.When you recive the acoustic foam panels, just and stick.<br> Widely Used - acoustic treatment for many occasions, not only for live sound treatment on studio and office walls, also for recording studios,home studios and anywhere you needed.<br> sound insulation panels are multifunctional and can be used in professional studios, rehearsal rooms, concert , podcasts, churches, home theaters, vocal kiosks, home studios, offices, private spaces for men, and kennels , Sundries , etc. By using the absorption panel to eliminate unnecessary sounds, other sounds can be made clearer.<br> can eliminate indoor reverberation//standing wave/noise and the sound of the space.<br> environmentally friendly and harmless, safe to and touch,safe for adults, kids and pets.You can use it with .<br> Note: (with adhesive) - slight color difference<br> Colour:Dark grey<br> Material:Polyester fibers<br> Size:Single side length:about 15cm<br> Package Contents:<br> 12 x Acoustic Panels<br> Only the above package content, other are not included.<br> Note: Light reflection 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.