Shades width will be 1/4" narrower for a snug internal installation. Actual shade size is 19 3/4" W x 60" H. Choose the size SAME or SLIGHTLY LESS to your window width for INSIDE mount. For Example, if your window width is 30 inch, order 30" or slightly less for internal installation. For OUTSIDE mount, we recommend order (2-4)inch wider than your window width for better coverage. Light Filtering Roman Shades: Crafted from premium soft polyester linen blend fabric, allowing natural light to gently filter into your space while while providing privacy. Classic Roman shade style effortlessly enhance any room's aesthetic, creating a warm and inviting ambiance. Say goodbye to harsh glare and hello to softer, diffused light that adds a touch of tranquility to your home. Perfect for living room, bedroom, dinning room, kitchen. Cordless Blinds for Windows: The built-in robust constant force spring-loaded mechanism makes it easy to open and close smoothly and quietly with weighted hem to keep it in place. Cord-free design provides a clean, tangle-free look to the window. Safer for children and pets. Simply use your hands to guide the blinds to your desired length to gently filter sunlight. Easy Maintenance: Polyester fabric is not only dust-resistant but also incredibly durable, ensuring it retains its appearance over time. Simply dust the shade regularly with a soft cloth or feather duster, and if necessary, spot clean it with a gentle, clean cloth. Care Instructions: Packing and shipping will typically cause the fabric to wrinkle. Please allow the shades to hang for a few days upon receipt to relax the wrinkles. If necessary, gently steam on a LOW setting to remove wrinkles. Note: If the steam temperature is too high it could damage the shade.