Pyramid Acoustic Foam (Single) 2" 24" x 24" 2' x 2' covers 4 sq Ft - SoundProofing/Blocking/Absorbing Acoustical Foam - Made in the USA! Single Pyramid Special! 2" Thick x 24" x 24" Charcoal Color - Covers 4 sq Ft High NRC Rating of .71 Made in the USA! Perfect for smaller projects or filling in larger kits