Features: 3D Pyramid Acoustic Design: 2-inch pyramid foam can provide moderate sound control on walls or ceilings Through acoustic control, noise reduction, acoustic treatment, and sound dampening, acoustic foam can reduce fluctuations, echoes, and flutter in small and medium-sized rooms 2. Safety and Environmental Protection: The sound-absorbing panel is environmentally friendly, not only offering effective sound absorption properties but also causing no harm to the human body 3. Wide Application: Highly suitable for sound treatment on walls in studios or offices - ideal for recording studios, control rooms, home office setups, home theaters, and home offices Easy to shape and cut to size, adjustments do not affect performance 4. Easy to Clean: High-quality studio foam can permanently maintain its sound insulation function When cleaning, you only need to vacuum and dust it occasionally 5. Sound insulation sheet is most suitable for sound treatment It is made from fire-retardant material with high density, which more effectively insulates sound and creates a great recording environment Product Number: Triangular slit shape: uneven color surface Color: Black Material: Foam Size: 30 x 30 x 5CM Packaging includes: 12 studio foams Only the above packaging content is included; other products are not included Note: Light and different screens may cause the color on the image to slightly differ from the actual product Allowed measurement tolerance is +/- 1-3 cm