Measurement Instructions: For Inside mount, ensure a minimum 2 "window frame depth and order shades 0.2" less than window width. Order length should match window length. For Outside Mount, order width and length 4~6 inches more than window dimensions Top Down Bottom Up Cellular Shades – Flexible Light Control & Privacy:Allesin Top Down Bottom Up Cellular shades feature a top down bottom up design, allowing you to adjust the shade from both the top and bottom for the perfect balance of natural light and privacy. The push-pull auto-locking system lets you easily set the shades at any height, providing smooth operation without the need for cords. perfect for bedrooms, living rooms, and offices Dual Insulation Noise Reduction:Designed with a unique hexagonal honeycomb structure and built-in eco-friendly aluminum foil, these honeycomb Shades provide excellent thermal insulation—keeping your home cool in summer and warm in winter—while helping reduce energy costs. The honeycomb design also delivers effective sound absorption, creating a quiet and comfortable living space, Allesin Cellular Shades good for enhancing your home environment year round Cordless Design for Safety and Clean Look:Allesin Top Down Bottom Up Cellular shades feature a cordless design that eliminates the safety risks associated with traditional cords, making them ideal for homes with children and pets. Easy to install and maintain, they offer a sleek, modern appearance. Available in both light-filtering and blackout options to ensure privacy and promote restful sleep Sustainable and Energy Efficient Design:Allesin Top Down Bottom Up Cellular shades offer reliable quality with energy-saving and eco-friendly features. Ideal for bedrooms, kitchens, bathrooms, offices, and children’s rooms,perfect for any space requiring versatile light control while supporting sustainability