These cellular shades are constructed from beautifully textured non-woven polyester fabrics. Using only the highest quality of fabrics allows for the gentle light filtering of natural light through the fibers while providing optimum personal privacy. The innovative cellular fabric design also allows for a high level of inside insulation; preventing cold inside air from escaping out into the summer heat or warm inside air from escaping out into the winter cold through glass windows. These environmentally friendly and eco-saving shades, not only save money on heating and cooling bills but they also greatly lessen our personal carbon footprint in society. One of its most unique special features is found in the Cordless Operating System. Located inside the bottom rail is a durable spring tension device specially designed for offering a completely safe cordless operation. To operate simply press the button located on the bottom rail and gently pull or push to the desired level. The shades are easy-to-size and easy to install at home by yourself. If needed to re-size, simply cut down the shade to fit the required window width using the utility knife and sizing tools included. This window shade is 100% cordless and rated as "Child-Safe", perfectly safe to use with children and pets.