"Oter Israel" employs about thirty scribes who have been chosen for their expertise and for their dedication to Torah. They are ordained to engage in the writing of all types of Torah scrolls, Tefillin, Mezuzot, and Megillot. Some are employed on a full-time basis, and others part-time, but all are individuals who devote all their time to Torah. All of the materials and tools used in the writing of these holy objects, including the parchment, the quills, and the ink, are of the highest quality. Only shelil parchment is used by "Oter Israel" in the production of Torah Scrolls, Tefillin, Mezuzot, and Megillot.
The process of the tanning of the leather includes several stages. All of the stages of the tanning of the leather and the production of Torah Scrolls, Tefillin, Mezuzot, and Megillot must be performed with the proper intent, that this be "for the sake of the sanctity of Tefillin."More Details
After the leather has been soaked in the lime solution, the leather is scraped to the desired thickness. The leather is then cut into T-shaped pieces of different sizes, in accordance with the orders received by "Oter Israel" and in accordance with the final size of the Tefillin. The sizes of the Tefillin produced by "Oter Israel" range from the largest, that are used by Chabad (Lubavitch) Chasidim, to the very small Tefillin that are one of "Oter Israel`s" specialties.More Details
Coloring the batim black is a lengthy process, the quality of which greatly influences the quality of the Tefillin. The color must be slowly absorbed by the leather. To achieve this end, the leather is dyed and polished at least four times. Each time four coats of dye are applied, so that the color will be well absorbed by the leather. This repeated action is in accordance with the halakhic requirement of "hazuta be-alma" (solely in appearance), that is, that the dye cannot be an external layer, but must be fully absorbed by the leather and become an integral part of the bayit, thereby giving the appearance of blackness. Spray-painting the batim is therefore totally forbidden, because the sprayed layer of paint is liable to peel off.
After the straps are colored, the knot of the straps is tied, in accordance with the various customs, and the high quality Tefillin of "Oter Israel" are ready. The entire process of their production has taken an entire year or more.