MULTIPLE SIZES AVAILABLE: We offer a wide range of sizes to fit various window dimensions, ranging from 12" to 94" in width. This makes it easy to find the perfect fit for your specific window size, whether it's for your bedroom, living room, bathroom, kitchen, French doors, or office. No matter the size of your window, we have a shade that will work for you. With our wide range of size options, you can easily find the right fit to provide your space with both style and functionality. BLACKOUT MATERIAL: This cordless window roller shade is expertly crafted with an exclusive textured fabric and a white 100% blackout backing that blocks incoming light. It's perfect for creating a comfortable and dark environment day or night. It's ideal for bedrooms, nursery, home theaters, or any room where light control is a top priority. Whether you want to improve your sleep quality or enhance your viewing experience, this blackout roller blinds is the perfect solution. THERMAL INSULATION: Tonature thermal insulated roller blinds offers exceptional year-round energy efficiency. Studies show that surface windows can cause up to 30% of heat loss, leading to higher heating bills and energy waste. Our shade's exceptional thermal insulation helps prevent heat loss in winter and blocks heat in summer, reducing heating and cooling costs. Its stylish colors and patterns add a touch of beauty to any room while maintaining its insulation performance. EASY TO INSTALL: Our roller shades are designed with easy installation in mind. We provide all necessary accessories and easy-to-follow instructions to make the installation process quick and hassle-free.With our roller shades, you can quickly and easily upgrade your home or office with exceptional energy efficiency, thermal insulation, and stylish design. HOW TO CHOOSE THE RIGHT SIZE for Your Window, follow these guidelines: for inside mount, the window width equals the blind width and window height equals the blind height. For example, a 23" width by 72" length window requires a 23" width by 72" length blind. For outside mount, add at least 4" to both the width and height. Keep in mind that the fabric width will be 0.8" shorter than the shade size. If your existing blind height is significantly different, consider a custom size. Introducing our Tonature cordless blackout roller shades, the perfect solution for anyone looking to create a comfortable and dark environment in their home or office. With a wide range of sizes available, from 12" to 94" in width, you'll be sure to find the perfect fit for your specific window dimensions, whether it's for your bedroom, living room, bathroom, kitchen, French doors, or office. Crafted with an exclusive textured fabric and a white 100% blackout backing, our roller shades expertly block incoming light with exceptional effectiveness, making them ideal for bedrooms, nurseries, home theaters, or any room where light control is a top priority. And with exceptional thermal insulation properties, our roller shades offer year-round energy efficiency, reducing heating and cooling costs while adding a touch of beauty to any room with their stylish colors and patterns. Our roller shades are designed with easy installation in mind, and we provide all necessary accessories and easy-to-follow instructions to make the process quick and hassle-free. Our cordless design also ensures a safe and simple installation without the need for cords. When choosing the right size for your window, follow our simple guidelines. For inside mount, the window width equals the blind width and window height equals the blind height. For outside mount, add at least 4" to both the width and height. Keep in mind that the fabric width will be 0.8" shorter than the shade size. And if your existing blind height is significantly different, consider a custom size. Upgrade your home or office with our Tonature cordless blackout roller shades, the perfect combination of style, functionality, and energy efficiency.