The file 'Face Shield Stackable 3D Printer Model' is (stl) file type, size is 2.3MB.
Design features:
Stackable
Easy assembly
Easy to obtain parts
Comfortable
Multiple Fastening Points for different sizes
Light weight
Link showing how to assemble the face shields.
Standard Face Shield - https://www.thingiverse.com/thing:4269319/
Derived from HanochH's Easy 3d Printed Face Shield:
https://www.thingiverse.com/thing:4233193
Face_Shield_5a_Stackable.stl | 5.5MB |