Features: Great for spot treating sound on walls in your studio or office - For use in recording studios, control rooms, Offices home studios, home entertainment theaters, Home Offices 12 Pack covers 12 square feet - Each tile is 1 square foot of 1 inch thick acoustic wedge For professional acoustic control, sound dampening, acoustic treatment, noise reduction - Reduce waves, reverb and flutter echoes in smaller to medium sized rooms. REMARKABLE ACOUSTIC PERFORMANCE: Innovative Periodic Groove Structure for Much Better Broadband Absorption Ability | High NRC: 0.75 Perfect for recording studio, isolation shield, home theater, office, etc Description: Material: Polyurethane Size: 30*30*2.5cm Quantity: 12pcs Application: Family noise control (walls, pipes, ceilings, etc.) Workplace noise control (light walls, partitions, conference rooms, etc.) Entertainment noise control (KTV rooms, walls, ceilings, floors, etc.) Industrial noise control (factory walls, roofs, equipment, doors, controlroom, etc.) Package included: 12 pcs Soundproofing Egg Crate Foams Notice: Due to the different monitor and light effect,the actual color maybe a slight different from the picture color. Please allow 2-3cm differs due to manual measurement .