12Pack Acoustic Foam Panels, 3D Beveled Wedge Tiles, Sound Wedges Sound Insulation Absorber[Noise Reduction]: Our 3D acoustically designed 2-inch foam helps break sound waves, providing excellent moderate sound control on walls or ceilings. [Reduce Inversion]: 50/lb per cubic meter, these acoustic panels effectively absorb unwanted flutter echoes. Made of non-toxic eco-friendly polyurethane foam at 50/lb per cubic meter[Quick Expansion], our foam board is vacuum packed and compressed, quickly returns to normal size, can be placed in a well-ventilated area for about 24 - 48 hours, or soak the foam in water for a minute, then wring out the moisture and use a hair dryer or let it dry/dry. [ANYWHERE]: Ideal for live therapeutic sound on the walls of your studio or office - for recording studios, control rooms, office home studios, theaters, home entertainment, home offices. Easy to shape and cut, modifications will not affect the performance. Color: GreyMaterial: Polyurethane Size: 30x30x5cmPackage Contents: 12 x Acoustic Foam PanelsOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.