Hearing Protection/Headphone Holder for Harbor Freight Service Cart

This bracket fits the US General single drawer service cart.  

Print it on it's side so the layer lines are strongest.  It clips right on the side with just enough flex to keep it tight.  I've included the Fusion file so you can adjust it to fit yours as needed.  I also suggest using modifiers to increase the infill to 100% at the top and bottom where it attaches.  It might be OK without that, but it doesn't hurt.  The included 3mf already has that setup.  PETG for the flex.