High Density Acoustic Foam -Crafted from premium high-density polyurethane foam with a density of 30 kg/m³, these panels effectively absorb sound, reducing noise, echoes, and reverberations for a clearer audio experience in your studio, office, or gaming room. | Superior Soundproofing Wedges -Designed with a wedge shape, these panels enhance sound absorption and sound-damping, making them ideal for treating walls and improving acoustic quality in recording studios, offices, and home theaters. | Durable& Long-lasting- Saiqiang acoustic foam panels are made with professional grade acoustic foam, they are built to withstand daily use and provide consistent soundproofing. And soundproof foam panels reduce noise pollution by absorbing it. | Fire-Resistant & Safe -Made from fire-resistant material, these panels meet safety standards, providing peace of mind while protecting your space from potential fire hazards. Non-toxic and environmentally friendly, they are safe for all users. | Easy Installation & Versatile Use -Lightweight and easy to install on any wall surface with general-purpose adhesive (not included double-sided tape). Perfect for home studios, offices, gaming rooms, and more, these panels can also be cut to fit custom shapes and sizes. | For some products that cannot expand well, Just put the product in the dryer for a few minutes to expand it to its original shape.