Covid-19 face shield clips

A simple to produce pair of clips that can produce a disposable face shield using a headband and a sheet of A4 transparent film. Much simpler to produce and ship than many other designs and very comfortable in use. Also clips to many other items of PPE negating the use of a headband. See photos for more details.
Tested for a while now and they work a lot better than they should! They will have other uses too such as hanging cards, Temporary cable tie joiners etc