maybe WM (WesleyMyers) knows what the samurai call these black arm/hand protectors....not much use against any katana's razor sharp blades
Yes, I do (just read this post now). They are kote (pronounced "kohtay"). Hand/forearm/wrist guard. One of the key cuts in Kendo is kote (to cut the opponents hand off at the wrist).
If they lose their hand it is not easy to fight back. It also leaves the person alive. Whether that is a good thing or not could be debated through Western (Christian) ideals and/vs/or Budo ideals.
They look very good on the figure!
Kendo ones cover the hand in a mitten-like way to protect the fingers in practice.