An explanation of the mitzvah of tefillin. Includes photos of tefillin being made and how they should be worn.
Tefillin by Rabbi Aryeh Kaplan (1993-05-04)
KisuYad: Tefillin Shel Yad Protector - Flexible – Judaica Plaza
Tefillin - Wikipedia
Kesher Tefillin – Make the Connection
Tefillin Logo - ClipArt Best
Basic Tefillin
MASORET Thermal Tefillin Bag Set - Compact Plastic Insulated TIK-Taf Tefillin Protective Container Made in Israel, 6x9 Inches (Black) : Home & Kitchen
Expanded cardiovascular benefits shown when wearing tefillin - study - The Jerusalem Post
Qumran Tefillins