Auralex Acoustics Studiofoam Wedgies Acoustic Absorption Foam, 2" x 12" x 12", 24-Panels, Charcoal Great performance at a low cost Smaller panels offer more options for placement and design Class B fire rating NRC of .80 Includes: (24) 2 x 12 x 12 Thick Studiofoam Panels" "- 24 Square Feet"