The inside of the box is engraved with lots of different words that are we use on Pesach or words that are directly related to Pesach. Dots have been strategically placed in between the words or phrases to symbolize the little holes that we find in the matzah.
Some of the words that are common on Passover are:
פסח (Pesach); מצות (Matzahs / unleavened bread); סדר הגדה של פסח (The order of the Pesach Seder); יציאת מצרים (The Exodus from Egypt) and מה נשתנה הלילה הזה (Why is this night different from all other nights?)
Measures: 8.5" by 8.5 and 2" tall