These self-adhesive acoustic panels are designed to help reduce echoes and mid- to high-frequency noise in homes, studios, offices, theaters, and meeting spaces. Made from high-density polyester fiber, they offer sound absorption with a clean black finish and a striped pattern. The 3M self-adhesive backing allows for quick installation without drilling or extra tools. Their beveled edges help create a seamless look, and the material can be cut for custom layouts. This 5-piece set is built for both functional sound control and a cleaner-looking space.