Surgical Mask Simple Adjustable Strap

I run a printer with a 5.5" max dimension, so I wanted a way to print a cheap, fast, part that could hook to itself to allow a size range from approx 5.5" to 10" and still hold the elastics off the ear. My wife is a nurse and will be testing these with her team so I can make revisions as I go.

Thanks to all those before me for the hook inspiration. I was going for short, sweet, cheap, durable enough to stay on but thin enough that they can be discarded after extended wear.