Cord lift control. Width range: 18-71 inches; Length range: 12-90 inches. Install hardware included. Made of 90% polyester and 10% linen in printed designs. Headrail size: Long as roman shade width, 1-1/4''h x 1-3/4''d. Inside Mounted: Measure the window inside width and height. Deduct 3/8 inch on the window width to get the shade width to ensure a proper fit inside the window frame, shade height could be the same as the window height. Ensure you have enough window depth, at least 2 inches. Outside Mounted: Measure the window frame width and height. Add 3-6 inches to the window frame width and 8-10 inches to the window frame height. Install on the frame, shade size could be the same or slightly smaller than the window size. The headrail and aluminum rod is detachable and can be removed to clean the curtain. After washing, it is recommended to iron and level the assembly. Color counts on dye lots. Learn more about linen