STAS Drop Ceiling Hook + Loop Perlon Cord + Zipper Pro Security Hook (39" perlon Cord)

This system for hanging items is perfect and exactly what I needed. I am an optometrist; my office has a wall of windows which I need to black out (I need the room to be dark to effectively evaluate vision). I wanted to hang done frames on that wall, and this system worked perfectly. Installed in an instant. Appear quite sturdy. I'd definitely buy again.