Tefillin (תפלין) are a prayer straps, which religious men lay to their arm and head during morning service on weekdays. It is one of the oldest outwards sign of Judaism and they are mentioned in Torah (Deuteronomy). There is also an inaccurate and pejorative Christian-originated term phylacteries. Tefilin consists of two long leather straps, each of which is attached to a small cubic leater box containing parchment scrolls with passages from the Torah. There is a prescribed way how to lay tefilin.