Color: Dark Grey Material: Polyester Cordless Window Treatments Lined 1-year Limited Warranty INSIDE mount: measure your window horizontally with a steel tape measure in three places; top, middle, and bottom, use the smallest measurement, round down to the nearest half inch available. Your shade will arrive with an 1/4" deduction. OUTSIDE mount: Measure your window horizontally with a steel Designed by Linen Avenue, the Linen Avenue Cordless Cellular Light Filtering Shade, 71 W x 66 H, Dark Grey is built for lasting quality and everyday use. Shop at OJCommerce and explore our collection with free shipping on every order.