Easy to install - Our soundproofing wall panels come with self-adhesive tape, just peel off the double-sided tape on the back and use it immediately. Save time and money. Please note that they may fall off if you climb on the wall to press them firmly. Perfect for professional studios, vloggers, rehearsal rooms, concert halls, podcasts, schools, home theaters, offices, dog kennels, etc. Self-adhesive acoustic panels are lightweight and can be installed on a variety of surfaces (walls, doors, windows, ceilings, etc.) without tools. The self-adhesive acoustic foam is also easy to cut to size, which does not affect the performance of the acoustic foam. High-quality materials: Our sound-absorbing foam panels are made of fire-retardant and environmentally friendly materials, safe to use in small and medium-sized rooms. High-quality panels for better sound absorption, reducing waves, echoes, and flutter echoes in small to medium-sized rooms. Installation method: It is recommended to attach the tape to the four corners and the center of the back of the acoustic foam panels and then attach it to 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 panel Only 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 allowed measurement error is +/- 1-3 cm.