Our Udderly Quiet™ Class A™ Acoustic Foam Kits offer the same great acoustic performance as our other acoustic foam kits, however they have a Class A™ flammability rating. The components were hand selected by our experienced staff with three goals in mind: first, to put together a acoustic foam package that would address the acoustically complex studio recording environment, second, to make the acoustic foam kits affordable for any studio recording junkie, no matter what their budget and third, build an acoustic foam kit that would pass the most strict flammability guidelines. The products in our kits are professional grade, flame resistant acoustic foams. These kits are perfect for those who are concerned with public safety and expect exceptional acoustic performance.