Object of ritual of the Jews. It is a set of leather boxes and straps. It is a word of Hebrew origin. It means strap that binds the Jews in the left arm and the head with which they give 7 turns (if the person is left-handed he uses it in the right hand). Phillactery (which is a word of Greek origin and means amulet, which is why it is not used by Jews).
Tefillin are passages from the Old Testament (usually Exodus and Deuteronomy) written in principle on parchment and placed inside small boxes with straps that Jewish males tie to their arm and head by religious precept. The Hebrew name is 1514; 1508; 1497; 1500; 1497; 1503; 8206; (Tfilin), although outside Judaism its Christian version "phylactery" is more popular.