Custom Size Cordless Roller Window Shades Total Blackout Fabric with Thicken and Waterproof, EASY INSTALL Premium fabrics and components: 100% Polyester + Thicken Thermal Insulated Coating. 100% Anti-UV protection and water-resistant. The rail and the assembly parts are made of more solid and durable high-strength steel. Cordless design: Cordless Design blinds are safer for kids and pets. The free-stop design can easily adjust the height and A handle at the bottom bar enable you to stop the blind at any length you want. The built-in spring system is durable and stable. Total Blackout: Total blackout fabric provides complete privacy for you, which suitable for multiple scenarios(Bathroom, bedroom, office, etc) Easy Installation: Installation hardware of blinds for windows is included & Easy to install(screw, mount bracket) --Please message us before making a purchase if you plan to order more than 3 sets of curtains, as we offer an additional discount for bulk orders.