Check the listing for details. 48 Pack (12 x 12 x 3) Inch Pyramid Acoustical Foam Panel for Wall Soundproofing. Condition: New. Listed at 134.95 USD. 48 Pack of (12 x 12 x 3) Inch Acoustical Pyramid Foam for Soundproofing Studio & Home Theater Walls Capable of soundproofing any size room, 3 inch pyramid foam is fantastic all-around sound absorbing foam. When used in conjunction with corner bass absorbers and male/female broadband absorbers, it performs even better. The 48 packs of pyramid foam are available in the following colors: Charcoal, Red, Orange, Rosy Beige, Brown, Burgundy, Blue, Purple, Plum, Teal, Kelly Green, and Forest Green. Specifications Quantity = 48 Pieces Size = (12 x 12) Inch Thickness = 3 Inches Overall NRC: 0.50 Flammability Test Results Class A 25 Flame Spread Index 250 Smoke Spread Index The overall NRC rating is the calculated average of frequencies 250Hz, 500Hz, 1000Hz and 2000Hz. > 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz Overall 1" Pyramid 0.14 0.13 0.31 0.43 0.46 0.54 0.35 2" Pyramid 0.19 0.22 0.45 0.55 0.60 0.76 0.45 3" Pyramid 0.24 0.29 0.55 0.56 0.61 0.85 0.50 4" Pyramid 0.28 0.39 0.74 0.69 0.75 0.96 0.65 Durability: Our foam is specially made to withstand elements like harsh, direct lighting, the physical contact of manual handling, and of course, sound waves. Unlike other brands, our soundproofing foam will never crumble or harden, so the only cleaning required is the occasional vacuuming of dust. You can trust that our foam will remain soft and in sound acoustical condition for years to come Coloring: After selecting the foam that best satisfies your needs, we offer you the opportunity to choose a color that perfectly fits the product's future surroundings. Unlike some products from other companies, our foam is truly colorized and not surface-painted, ensuring uniformity. This quality color is designed to resist light, humidity, temperature, sweat and cigarette smoke. Special Shipping Please allow 4 to 6 business day for tracking to update. Our Acoustical foam products are cut and packaged at the time of order in order to provide a top quality product. Acoustical foam that is packaged for long periods can become deformed over time. FREE SHIPPING: Ships by FedEx Ground. Delivery time is usually (6 to 10) business days from purchase date. RETURNS: ShopBox® items that are purchased may be returned within 60 days of receiving them for either a refund, replacement, or an exchange. ShopBox® items can be replaced or exchanged (pending product availability). If there's an error on our part related to your order, ShopBox® will issue a credit for your order and any applicable shipping. Otherwise ShopBox® is not responsible for return shipping cost. Please contact ShopBox® through eBay Messages before any returns are made.