2 Pack - Acoustic Foam Sound Absorption Pyramid Studio Treatment Wall Panels, 2" X 12" X 12" Pyramid foam provides moderate sound control on walls or ceilings, especially ones not parallel to the floor. This product is best for when absolute sound deadening is not required, but moderate deadening is desired. Great for spot treating sound on walls in your studio or office - For use in recording studios, control rooms, Offices home studios, home entertainment theaters, Home Offices Product Care: Occasional Vacuuming of Dust. For professional acoustic control, sound dampening, acoustic treatment, noise reduction - Reduce waves, reverb and flutter echoes in smaller to medium sized rooms. MADE IN USA - Fire Retardant: CA Technical Bulletin 117