Ezekiel 10:7-11

Then the cherub reached out with his hand from between the cherubim to the fire which was between the cherubim, took some coals and put them into the hands of the one clothed in linen; and he took them and went out.

The cherubim appeared to have something like a human hand under their wings.

Then I looked, and behold, four wheels beside the cherubim, one wheel beside each cherub; and the appearance of the wheels was like the gleam of a Tarshish stone.

And as for their appearance, all four of them had the same likeness, as if one wheel were within another wheel.

When they moved, they went in any of their four directions without turning as they went; but they followed in the direction which they faced, without turning as they went.