Wire Shelf Headphone Hook

Designed for those white wire rack shelves they sell just about everywhere and installed to my right above my computer equipment, I've created a clip-on headphone hanger although it could be used for any number of things. It is held in by the spring tension of the media itself being designed with an intentional spring joint and being 1 mm larger than the opening which is 34mm on mine. Dimensions can be gleaned from the images