I'm just curious and I want to know what it means.
On the two side panels visible on the left box, you have "mi k'amcha" (who is like your nation) and the "Yisrael" (Israel). On the right box, only the word "Yisrael" is easily visible, but the other panel reads "goy echad" on nation and the final side would read "ba'aretz" in the land.
On the top, the one on the left says "tefillin shel rosh" indicating that it is the storage box for the phylacteries for the head. The one on the right says "tefillin shel yad" as that one holds the hand tefillin. The words on the tops are upside down.