TMS Mass Loaded Vinyl 4' X 10' 40 Square Feet 1 Lb MLV Acoustic Barrier<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Made in the USA - High Quality </span></li><li><span class="a-list-item"> Perfect for Automobiles， Condos， Apartments， Studios， Classrooms， Medical Facilities and more </span></li><li><span class="a-list-item"> 1 pound per square foot density， 1/8 of an inch thick - 27 STC </span></li><li><span class="a-list-item"> No odor - Virgin material (no regrind or recycled material) </span></li><li><span class="a-list-item"> 1/8 of an inch thick - 27 STC </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41mwIpnUtoL.jpg" noproxy>