YoYo Factory multi-tool
YoYoFactory YoYo Multi-tool
It's a hex head key to undo an axle (if it shows you its head).
It's used to disassemble a loop 2020
It is used to wiggle out large bearings
and you can cut a string with it.
A handy size tool that fits on a keychain or on a lanyard, it's saves a lot of time instead
of having to search for the right thing to get the job done.