Xinglong 12" X 12" X 2" 24 Pack Black Acoustic Wedge Studio Soundproofing Foam Product Details Describe Produced by environmentally polyurethane foam.In order to improve the opening steps and specific acoustic characteristics, make it not only has the sound absorption characteristics effectively, without any harm to human body Specifications: Material:nvironmentally polyurethane foam Color:black Size:30x30cm?12\"x12\") Thickness:5cm / 2\" 2 inch wedge foam is effective against standing waves and flutter echoes in most small-to-medium sized rooms like vocal booths, control rooms and studios. It also functions as a full frequency bandwidth absorber for any size room when used in conjunction with corner bass absorbers and male/female broadband absorbers" } good for studios, recording studios, vocal booths, control rooms. 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.