About this 3D model
This probably falls into the category of things you shouldn't print, but they're indicator pins for an inflatable pfd*. If you do use this, make sure you print a few and test them, it's very easy to print a pin or use a plastic that would be very hard to break (which happened with the first version I made). Printer: -- Eustathios Filaments: (full list can be found on thrinter) -- Octave Flourescent Green ABS *affiliate link