And the work of the wheels was like the work of a chariot wheel: their axletrees, and their naves, and their felloes, and their spokes, were all molten.
The appearance of the wheels and their craftsmanship was like the gleam of beryl, and all four had the same form. Their appearance and craftsmanship was like a wheel within a wheel.
Their rims were large and frightening. Each of their four rims were full of eyes all around.