Description Egg Tray Acoustic Foam convoluted design increases the surface area like other designs and absorbs the sound as required. Its powerful and old, available in only one classic colour professional charcoal. Its can stuck on any surface using adhesive. The design has an NRC greater than 0.85. The density is high and the product is commonly used behind gypsum walls, grid ceilings or on wall surface who loves the classic design. Also the product is cheaper than other designs due to its cutting process which avoids any wastage. Key Features: For Walls, Ceilings, Doors and Windows Diffuses Sound Absorbs Sound CNC Precise Cut For Audiophiles NRC > 0.90 STC > 27 Shelf Life > 7 years Can be stuck on any surface Colours Available: Orange, Charcoal Dimensions: Thickness = 1.5 inch, Length = 12 inch