He wrought a work on the wheels - אל האבנים al haabnayim, upon the stones, the potter’s wheel being usually made of such, the spindle of the moving stone being placed on a stone below, on which it turned, and supported the stone above, on which the vessel was manufactured, and which alone had a rotatory motion. The potter’s wheel in the present day seems to differ very little from that which was in use between two and three thousand years ago.