- Cordless Cellular Shades: Engineered with a blackout liner, our sheer shades effectively block light and UV rays while providing noise reduction. The innovative 1.19-inch honeycomb structure helps maintain a comfortable temperature, keeping your space cool in summer and warm in winter. The bottom tab allows for easy lifting and lowering, making these blinds ideal for bedrooms. - Upgraded Spring System: Our enhanced spring-loading system ensures effortless lifting and lowering of the shades. With a constant force mechanism, the blinds retract and extend smoothly and quietly, maintaining balance automatically. This patented spring winder design prolongs the lifespan of the springs, preventing sagging and simplifying installation. - Features: Control ambient light easily with the convenient handle. Available in various custom colors and sizes to suit different interior styles, these shades offer a modern and elegant look. Installation is straightforward, and the cordless design enhances safety, especially in homes with children or pets. These shades can be mounted inside or outside the window frame and operate silently. - Measurement Instructions: For inside mounting, a minimum window frame depth of 2 inches is required. The width of blackout shades should be 1/4 inch less than the window width, while the length should be 2 inches longer than the window height. For outside mounting, the shades should be 4 inches wider and longer than the window dimensions to ensure optimal coverage. - Use Scenarios: Perfect for bedrooms to create a peaceful sleeping environment, these shades are also great for living rooms or home offices, providing privacy and reducing noise. Use them in children's rooms for added safety and ease of operation.