Please pardon the poor video skills.
As you can hear in the background from a SpaceX engineer, the fairing was not recovered (though the rest of the Falcon9 did land back next to the take off pad)
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https://www.youtube.com/watch?v=nvDPhIR3v9k
This is a knife from the Chinese manufacturer TwoSun.
It is very small but reasonably well made.
The blade did not come very sharp from factory, and the angle wasn't great. This is easy to change and sharpen though.
The edge retention of the m390 seems very good so far and the knife is otherwise very sturdy especially for the size. It's surprisingly capable due to the thick blade, making it easy to apply leverage despite, again, the small size.
Once locked the blade has zero play.
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https://www.youtube.com/watch?v=3o2OMtHh09k