The Mezuzah is a small case in which a small hand written scroll of parchment
(called a klaf) is placed. The scroll contains the words of the "Shema Israel"
(Deuteronomy 6:4-9) passage, in which God commands Jews to keep His words
constantly in thier minds and in their hearts. The scroll also contains another
passage (Deuteronomy 11:13). The passages are written in Hebrew,
and contain 22 lines of 713 painstakingly written letters.

All Our Mezuzahs are certified and Kosher

Kosher Mezuzah
For the Mezuzah to be Kosher, it must meet the following criteria:

• The Mezuzah must contain a scroll
• The scroll must be hand written by a certified God fearing scribe
  (Sofer) with special black ink and quill on one piece of specially
  prepared and scored parchment
• The scroll may not contain mistakes or additions to its text.
  Any mistake, even one letter that was written incorrectly,
  would render the scroll, and the Mezuzah invalid (pasul).
• The Mezuzah must be affixed to the right side doorpost on an angle
• A small ceremony, calld Channukat Ha-Bayit (dedication of the house)
  was done