Green Mountain Vista Thermal Blackout Cordless Roman Shade, 36 by 63-Inch, White Supple Cotton blended blackout fabric provides maximum light and Draft control Superior Quality cordless Roman shade design offers smooth and precise adjustment No messy cords to tangle with. Child and pet safe. Easily mounted inside or outside the window frame. 2 inch depth required for inside mount If outside mounting we recommend ordering Size at least 2 inches wider then window opening to reduce light bleeding in from the edges