The Lightdesire 12 Pack Self-Adhesive Sound Proof Foam Panels, 12 X 12 X, Black. Product Details Self-Adhesive Design - The sound proof Foam panels have double-sided tape behind them.Easy to Install.Just rip down the first layer of double-sided tape,you can paste in wherever you want. High Deformation Rebound Rate - The high resilience of our products is reflected in the fact that when you unpack the product, the product quickly returns to its original appearance. Effective Acoustic Treatment - The sound-absorbing foam is a dense and thick open-cell foam which can well eliminate indoor reverberation/echo/standing wave/noise and improve the sound clarity of the space. Environmentally Friendly Materials - Our products are made of polyester fiber material, which is environmentally friendly and harmless, safe to breathe and touch,safe for adults, kids and pets.You can use it with confidence. Widely Used - Excellent acoustic treatment for many occasions, not only for live sound treatment on studio and office walls,but also for recording studios,home studios and anywhere you needed. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.