I didn't know what one was either - glad I can still learn! :)

I purchased a Japanese magic square set, in it was a pen like the old propellor pencil, it was to be used to mark the square on a pile of soft base. Is this the same as a hena? Is so PM.

I love it when my husband makes me tools. I know he really cares. all of my stuff will go to him, because I know he will use it.