[4 Pack] Mybecca 2-inch Acoustic WEDGE Premium Studio Soundproofing Foam Wall Tiles 12 x 12 x 2 Inches, Made in USA Consists of 4 PCS (2 tiles/pair) of 12 x 12 x 2 (2-inch) Acoustical Wedge foam panels Size: 2" x 12" x 12" ; Noise Reduction: 80-90%; Color: Charcoal Eliminates Standing Waves And Flutter Echoes; Reduces Unwanted Reflections; Reduces Unwanted Reflections Good for studios, recording studios, vocal booths, control rooms. Product Care: Occasional Vacuuming of Dust | CA Technical Bulletin 117-2013 Flammability Standard Compliant -- exclusive by Mybecca