This is driving me mad. I must know what these are and what they are for. (yesterday's post)
An extensive Google search has revealed nothing so plan B is to translate the Japanese symbols on the box:
This website gives you the symbols:
And these give you the translation:
Unfortunately, Uni M is insisting on her breakfast being made and then I have to go straight to work, so if any 4AoSer would like to take over the task, here's a close up of the symbols. Good luck.
Failing that, I'll do it myself this evening.