Eighteen (12" X 12" X 0.4"). Black Acoustic Panels, Soundproof Wall Decoration, Product Features ??ECO-FRIENDLY MATERIAL?BUBOS Sound panels are made of 100% polyester which is eco-friendly. We insist on using high-quality sound insulation materials to ensure that they are flame retardant, odorless, non-toxic, UL certified, safe to breathe and touch. It is not easily deformed, damaged and has a long service life. These acoustic panels sound absorbing have good performance in reducing noise, eliminating sound impurities, and improving speech intelligibility. ??EASY INSTALLATION DIY YOURSELF?The installation process of these sound proof padding is super easy, and you don't need to buy any extra tape or glue which saves you time and money. If you need to remove the soundproof wall panels, you can use a hairdryer to heat it up to remove it without damaging the wall. Use sound proof with other BUBOS products to create your unique acoustic environment. ??HIGH-EFFICIENCY ABSORPTION?Our acoustic panel compare with foam and other sound panels, which can easily and effectively reduce reverberation diffusion and echo, absorbing noise for walls. They effectively improve your sound environment and quality and can also be used as wall decoration. The main functions of these panels are to reduce room echo and reverberation, optimize the audio quality of live broadcasts and recordings, and enhance your stereo or surround sound listening experience. ??WIDE APPLICATIONS?These sound proof foam panels are great for spot-treating sound on walls in your studio or office. They are the perfect acoustic wall panels, recording studios, control rooms, offices, home studios, and home entertainment theaters. They are easy to shape and cut to size, and alterations won't affect performance. You can also use them on the ceiling or behind the TV! ??BACK GUARANTEE? If you are not satisfied with our products,Our professional acoustic engineers will analyze the specific situation for you. If it cannot be resolved, we will provide a 100% refund! Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!