23.62" X 11.81" X 2" Fiberglass Wall Panel, 4 Pack Acoustic Panels,, Black Product Details ?SOUND ABSORBING?The fiberglass wall panel would absorb the echos, reverb, sound reflection , lessen the noise and great for room, professional studios, home theater, office meeting room, hotel and school. ?COLLISION PROTECTION?The fiberglass wall panels being attached on wall is effective for collision protection. ?MODERN DESIGN?You can attach the fiberglass acoustic panel to wall for different decoration style for room, hall, living room, office, studio and home theatre. ?EASY TO INSTALL?Easily attach the acoustic panels on wall with Self-Adhesive. ?Sales Service?Please contact us if any problem with our acoustic wall panels, we will work to resolve your issues in 24 hours. 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.