Zebras are dual-layered shades that enable you to easily switch between sheer and privacy. This allows you to enjoy the outside view but also offers privacy when needed. The classic style and design make these window shades the perfect choice for bedrooms, living rooms, offices, kitchens, kids rooms, and more. This is the perfect DIY item to spruce up your windows. For inside mount installation measure top, middle, and bottom width and height of the window opening. Use the narrowest width and take the tallest height. For outside mount installation, measure the exact width, add an extra 3 top 5 inches for light gap coverage and privacy. Measure height from head rail to sill, add 1 and a half inches or more to the height for better light gap coverage.