FABRIC & CORDLESS DESIGN: Crafted from high-quality 100% Bamboo, Woven weight 680gsm, Privacy 90%, this shade is a beautiful and eco-friendly addition to any room. The cordless lift design ensures safety and easy to open and close. All hardware included.(Woven from natural materials, the color will change slightly with the gradual loss of greenery and oxidation. Mind the slight color difference do not buy. ·SHADING PERFORMANCE: The natural material blocks out the harmful UV rays but allows natural light to enter the room, making you enjoy the art of light and shadow. If you need better shading performance, privacy cotton liner 80% and blackout liner 100% are provided for you to add. ·INSIDE MOUNT: For inside mounting, measure the window opening width and height. Reduce the measured width by 3/8 inch to ensure it can be installed in, the height is the same as the measured height. Note there will be slight gaps on sides due to fabric deductions. Ensure your window depth is at least 2 and 3/4 inches. Otherwise, please choose outside mount. ·OUTSIDE MOUNT: For outside mounting, measure the window frame width and height. Add the measured width by 2-6 inches, add the measured height by 5-8 inches to prevent light gaps on the sides of your window, then customize this size. ·NOTE: This roman shade is intended for indoor use, do not place it in moist, damp environments. If you have any doubt or need any assistance before or after the purchase, please feel free to contact us. We are happy to calculate and provide you with the exact size require. Customizable Roman blinds & Shades Derf Home strives to reimagine window treatments by providing quality blinds and shades at affordable prices. Our natural Bamboo Roman Shades are the epitome of this philosophy. Made with high-quality bamboo, jute, linen, ramie, Flax fiber, bluish-dogbane, paper grass, woven together creates a light filtering shade that brings texture and style to any room. Our cordless lift system prevents the need for unsightly cords for raising and lowering our shade, while also being safer for pets and children. Every shade includes all necessary hardware for mounting inside or outside your window frame, along with mounting instructions to enable an easy and stress-free installation experience. Please see our posted diagrams for how to measure your windows to select the perfect size for your needs