This cordless blackout cellular shade is perfect for bedrooms and media rooms, with a design that's customizable to your needs. Inside or outside mount option. Window opening must be at least ?-½"D for inside mount, 2¼"D for flush inside mount. The width of the shipped blinds will be ½" shorter than width ordered to account for deduction of end caps and mounting hardware. If exact size is needed, order the width ½"wider. Example: if 23"width is ordered, a 22.5"width will be shipped. Custom blinds, shades and draperies are custom fabricated to your specifications. To receive a refund, you must cancel the order within 24 hours of the initial transaction. FREE SWATCH: If you would like to receive a swatch of the fabric prior to ordering the item, please e-mail customerservices@allstrongusa.com to receive a sample swatch of fabric. Please include your name, address, item description and color that corresponds with your selection. Allow 5 days to receive the swatch.