Column Acoustic Wedge Studio Soundproofing Foam Corner Block Finish Corner Wall in Studios or Home Theater (12 Pack)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Finish off your 2"-3" acoustically treated walls for an ultra clean look and added sound absorption </span></li><li><span class="a-list-item"> good for studios， recording studios， vocal booths， control rooms. </span></li><li><span class="a-list-item"> Class A Fire Retardant </span></li><li><span class="a-list-item"> Very Good Quality High NRC !! </span></li><li><span class="a-list-item"> Product Care: Occasional Vacuuming of Dust. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41SCNo39yWL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51gFqfbXu-L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51-0TMNgwzL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31s4Yok1UoL.jpg" noproxy>