Optimized Adjustable Band for Face Shield

Two straps that form an adjustable band for a face shield. These are printed vertically to increase speed and serrated to allow better hold. I haven't tested the holes with the official prusa strap-ears, but they work weel with the Norwegian version: https://www.prusaprinters.org/prints/30071-face-shields-fast-stack Print instructions These are 0.9mm thick so should be printed with 0.4 mm nozzle. 0.8 mm nozzle might also be possible.