Anyone knows this?a gel pen can write when you pick it up

[yuiopo]

I know here is a MP forum but I was really amazed when I found this… a gel pen that can write when you pick it up and when you put it down,it would make the refill return so that the refill can be protected.Another amazing function is it can return the refill when the pen falls down.

[Knockologist]

Not fully sure but here is a still shot that may help.