مسبحة عظم الجمل 99 خرزة | تصميم عادي

I recently purchased a 99‑bead tasbeeh made from camel bone through an online store. While the tasbeeh itself is good in quality, I am unable to understand the logic behind it having a total of 105 beads arranged as 33 + 35 + 37, along with two fasilah (divider) beads.

A standard tasbeeh contains 99 beads (33 + 33 + 33), divided into three equal sections with two additional divider beads.

Kindly explain the reasoning behind making a tasbeeh with 105 beads and uneven section counts.