\nEasy to install - Our soundproof wall panels come with self-adhesive, tear off the double-sided tape on the back and use immediately. Save time and money. Please note that after sticking it to the wall, press firmly to prevent it from falling off. Perfect for professional studios, vloggers, rehearsal rooms, concert halls, podcasting, schools, home theaters, offices, kennels, etc. Self-adhesive acoustic panels are lightweight and can be installed on a variety of surfaces (walls, doors, windows, ceilings, etc.) without any tools. The self-adhesive acoustic foam is also easy to cut, changes will not affect the performance of the acoustic foam. High-quality materials: Our sound-absorbing foam tiles made of fire-retardant and environmentally friendly material, it is safe to use in small and medium-sized rooms. High quality panels for better sound absorption, reducing waves, reverberation and flutter echoes in small to medium sized rooms. Installation method: It is recommended to stick the tape on the four corners and the middle of the back of the acoustic foam boards, and then stick it on the wall. Or you can buy spray adhesive to install the soundproofing foam according to your needs. Color: Black Material: Polyurethane Package contents: 24 x Acoustic foam board Only the above package contents, other products are not included. Note: Light photography and different displays may cause the color of the item in the picture a little different from the real thing. The permissible measurement error is +/- 1-3 cm.