braided picture wire 3
https://bravo-wiki.win/index.php/How_to_Prevent_Crooked_Pictures:_A_Practical_Guide_to_Hanging_Art_Level_and_Secure
You know that wire you use to hang pictures? It's usually this twisted, braided metal cord, often with a loop on each end. The braiding gives it strength so it won't snap under the weight of a framed canvas or large mirror, and it's designed to be adjustable on the hook, letting you raise or lower your artwork just a little.