Bookishbunny PREMIUM QUALITY ACOUSTIC STUDIO FOAM - 12 Red + 12 Gray GREAT FOR SPOT TREATING YOUR LISTENING ENVIRONMENT For use in recording studios control rooms home studios home entertainment theaters. CONTROL YOUR ROOM S ACOUSTICS - Reduces standing waves and flutter echoes in small to medium sized rooms. 24 Packs covers 24 square feet - Each tile is 1 square foot of 1 inch thick premium acoustic wedge foam. Fire Retardant. Our foam is fire rated and passed the Class A ASTM E84 test (for residential applications)! Mix and match colors for a custom look.