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A yad (Hebrew: יד, literally "hand"; Yiddish: האַנט hant, "hand") is a Jewish ritual pointer, popularly known as a Torah pointer, used by the reader to follow the text during the Torah reading from the parchment Torah scrolls. It is often shaped like a long rod, capped by a small hand with its index finger pointing from it.
Beyond its practical usage in pointing out letters, the yad ensures that the parchment is not touched during the reading. There are several reasons for this: handling the parchment renders one ritually impure and the often-fragile parchment is easily damaged. Moreover, the vellum parchment does not absorb ink so touching the scroll with fingers will damage the lettering. While not required when chanting from the Torah, it is used frequently and is considered a hidur mitzvah ("embellishment of the commandment") of reading the Torah.
The Mountain Jews had a peculiar way with pointers: they were held in pairs forming a V-shape dividing the text into passages. They were made and donated in pairs, even joined together with a chain when they had inscriptions related to the same event. Their shapes were of two types: a flat bar and a bar twisted into a long tight screw-like shape with a flat part. IN both types, the pointing part is made in the shape of a flat broad leaf with a rounded tip. 
From the inscriptions on the pointers, one may deduce a specific ritual of Mountain Jews: before reading, the Torah is displayed to the congregation and the pointer indicated to it as a conceptual parallel to the guiding hand of God.
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