Face Mask Strap (fast print time)

This is an improved version derived from the popular surgical mask strap recently.
I have made improvements in the design in order to help reduce the print time and material usage.
After some testing, I have come up with this design which cuts the print time and material usage more than half from my testing. And more importantly, it should be able to get the job done
Hope this helps to speed up the production.
Do spread the words. Thanks