The roman shade window blind lock is made of stainless steel and nylon material, so they are durable, sturdy, not easy to break or deform that can serve you for a long time, bringing convenience to your life.
Can be installed without any effort.
Work nicely: these cord lock work well for roman shades that you can raise and lower your roman shade just like a blind; Mounting them to the top brace, then thread the cords through, they will work nicely to make your shade flexibly adjustable.